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freeCodeCamp/curriculum/challenges/chinese/10-coding-interview-prep/project-euler/problem-211-divisor-square-sum.md

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---
id: 5900f43f1000cf542c50ff52
title: 问题211除数平方和
challengeType: 5
videoUrl: ''
---
# --description--
对于正整数nσ2n为其除数的平方和。例如σ210= 1 + 4 + 25 + 100 = 130.找到所有n的总和0 <n <64,000,000使得σ2n是完美的平方。
# --hints--
`euler211()`应返回1922364685。
```js
assert.strictEqual(euler211(), 1922364685);
```
# --solutions--