56 lines
		
	
	
		
			1.1 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
		
		
			
		
	
	
			56 lines
		
	
	
		
			1.1 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
| 
								 | 
							
								---
							 | 
						|||
| 
								 | 
							
								id: 5900f45d1000cf542c50ff70
							 | 
						|||
| 
								 | 
							
								challengeType: 5
							 | 
						|||
| 
								 | 
							
								title: 'Problem 241: Perfection Quotients'
							 | 
						|||
| 
								 | 
							
								videoUrl: ''
							 | 
						|||
| 
								 | 
							
								localeTitle: 问题241:完美商数
							 | 
						|||
| 
								 | 
							
								---
							 | 
						|||
| 
								 | 
							
								
							 | 
						|||
| 
								 | 
							
								## Description
							 | 
						|||
| 
								 | 
							
								<section id="description">对于正整数n,令σ(n)为n的所有除数之和,因此例如σ(6)= 1 + 2 + 3 + 6 = 12。 <p>正如您所知,一个完美的数字是σ(n)= 2n的数字。 </p><p>让我们定义正整数asp(n)=σ(n)n的完美商。求出所有正整数n≤1018的和,其中p(n)的形式为k + 1/2,其中k是整数。 </p></section>
							 | 
						|||
| 
								 | 
							
								
							 | 
						|||
| 
								 | 
							
								## Instructions
							 | 
						|||
| 
								 | 
							
								<section id="instructions">
							 | 
						|||
| 
								 | 
							
								</section>
							 | 
						|||
| 
								 | 
							
								
							 | 
						|||
| 
								 | 
							
								## Tests
							 | 
						|||
| 
								 | 
							
								<section id='tests'>
							 | 
						|||
| 
								 | 
							
								
							 | 
						|||
| 
								 | 
							
								```yml
							 | 
						|||
| 
								 | 
							
								tests:
							 | 
						|||
| 
								 | 
							
								  - text: <code>euler241()</code>应该返回482316491800641150。
							 | 
						|||
| 
								 | 
							
								    testString: 'assert.strictEqual(euler241(), 482316491800641150, "<code>euler241()</code> should return 482316491800641150.");'
							 | 
						|||
| 
								 | 
							
								
							 | 
						|||
| 
								 | 
							
								```
							 | 
						|||
| 
								 | 
							
								
							 | 
						|||
| 
								 | 
							
								</section>
							 | 
						|||
| 
								 | 
							
								
							 | 
						|||
| 
								 | 
							
								## Challenge Seed
							 | 
						|||
| 
								 | 
							
								<section id='challengeSeed'>
							 | 
						|||
| 
								 | 
							
								
							 | 
						|||
| 
								 | 
							
								<div id='js-seed'>
							 | 
						|||
| 
								 | 
							
								
							 | 
						|||
| 
								 | 
							
								```js
							 | 
						|||
| 
								 | 
							
								function euler241() {
							 | 
						|||
| 
								 | 
							
								  // Good luck!
							 | 
						|||
| 
								 | 
							
								  return true;
							 | 
						|||
| 
								 | 
							
								}
							 | 
						|||
| 
								 | 
							
								
							 | 
						|||
| 
								 | 
							
								euler241();
							 | 
						|||
| 
								 | 
							
								
							 | 
						|||
| 
								 | 
							
								```
							 | 
						|||
| 
								 | 
							
								
							 | 
						|||
| 
								 | 
							
								</div>
							 | 
						|||
| 
								 | 
							
								
							 | 
						|||
| 
								 | 
							
								
							 | 
						|||
| 
								 | 
							
								
							 | 
						|||
| 
								 | 
							
								</section>
							 | 
						|||
| 
								 | 
							
								
							 | 
						|||
| 
								 | 
							
								## Solution
							 | 
						|||
| 
								 | 
							
								<section id='solution'>
							 | 
						|||
| 
								 | 
							
								
							 | 
						|||
| 
								 | 
							
								```js
							 | 
						|||
| 
								 | 
							
								// solution required
							 | 
						|||
| 
								 | 
							
								```
							 | 
						|||
| 
								 | 
							
								</section>
							 |