Sum of divisors

Write a function that returns the sum of the divisors of a number @n@.

For instance, the sum of the divisors of 28 is $1+2+4+7+14+28 = 56$.

Interface

int sum_divisors(int x);

public static int sumDivisors(int x);

sum_divisors(x)  # returns int

sum_divisors(x: int) -> int

Precondition

$1 \le$ @n@ $\le 10^8$.

Observation

You only need to submit the required procedure; your main program will be ignored.

Problem information

Author: Unknown
Translator: Salvador Roura

Generation: 2026-01-25T12:09:11.932Z

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