Oliver Eyton-Williams 0bd52f8bd1
Feat: add new Markdown parser (#39800)
and change all the challenges to new `md` format.
2020-11-27 10:02:05 -08:00

677 B

id, title, challengeType, forumTopicId
id title challengeType forumTopicId
5900f4e81000cf542c50fffa Problem 379: Least common multiple count 5 302041

--description--

Let f(n) be the number of couples (x,y) with x and y positive integers, x ≤ y and the least common multiple of x and y equal to n.

Let g be the summatory function of f, i.e.: g(n) = ∑ f(i) for 1 ≤ i ≤ n.

You are given that g(106) = 37429395.

Find g(1012).

--hints--

euler379() should return 132314136838185.

assert.strictEqual(euler379(), 132314136838185);

--seed--

--seed-contents--

function euler379() {

  return true;
}

euler379();

--solutions--

// solution required