二级阅读程序-2

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14

#include <iostream>
using namespace std;
int main() {
    int n;
    cin >> n;
    int sum = 0;
    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= i; j++) {
            if (i % j == 0) sum += j;
        }
    }
    cout << sum << endl;
return 0;
}