56 lines
989 B
Markdown
56 lines
989 B
Markdown
|
---
|
|||
|
|
id: 5900f4fd1000cf542c51000f
|
|||
|
|
challengeType: 5
|
|||
|
|
videoUrl: ''
|
|||
|
|
localeTitle: 问题401：除数的平方和
|
|||
|
|
---
|
|||
|
|
|
|||
|
|
## Description
|
|||
|
|
<section id="description"> 6的除数是1,2,3和6.这些数的平方和是1 + 4 + 9 + 36 = 50。 <p>设sigma2（n）代表n的除数的平方和。因此sigma2（6）= 50。 </p><p>设SIGMA2表示sigma2的和函数，即对于i = 1到n，SIGMA2（n）=Σsigma2（i）。 SIGMA2的前6个值是：1,6,16,37,63和113。 </p><p>找到SIGMA2（1015）modulo 109。 </p></section>
|
|||
|
|
|
|||
|
|
## Instructions
|
|||
|
|
<section id="instructions">
|
|||
|
|
</section>
|
|||
|
|
|
|||
|
|
## Tests
|
|||
|
|
<section id='tests'>
|
|||
|
|
|
|||
|
|
```yml
|
|||
|
|
tests:
|
|||
|
|
- text: <code>euler401()</code>应该返回281632621。
|
|||
|
testString: assert.strictEqual(euler401(), 281632621);
|
|||
|
|
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
</section>
|
|||
|
|
|
|||
|
|
## Challenge Seed
|
|||
|
|
<section id='challengeSeed'>
|
|||
|
|
|
|||
|
|
<div id='js-seed'>
|
|||
|
|
|
|||
|
|
```js
|
|||
|
|
function euler401() {
|
|||
|
|
// Good luck!
|
|||
|
|
return true;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
euler401();
|
|||
|
|
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
</div>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
</section>
|
|||
|
|
|
|||
|
|
## Solution
|
|||
|
|
<section id='solution'>
|
|||
|
|
|
|||
|
|
```js
|
|||
|
|
// solution required
|
|||
|
|
```
|
|||
|
|
|||
|
|
/section>
|