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Problem 1185. -- Divisor Summation

## Divisor Summation

Time Limit: 1 Sec  Memory Limit: 64 MB
Submit: 888  Solved: 200
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## Description

Give a natural number n (1 <= n <= 500000), please tell the summation of all its proper divisors. Definition: A proper divisor of a natural number is the divisor that is strictly less than the number. e.g. number 20 has 5 proper divisors: 1, 2, 4, 5, 10, and the divisor summation is: 1 + 2 + 4 + 5 + 10 = 22.

## Input

An integer stating the number of test cases, and that many lines follow each containing one integer between 1 and 500000.

## Output

One integer each line: the divisor summation of the integer given respectively.

```3
2
10
20```

```1
8
22```

zoj2095

## Source

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