BOJ 15633 - Fan Death [C++]

문제

링크

풀이

#include <iostream>
using namespace std;
 
void solve(void) {
  int n; cin >> n;
 
  int ans = 0;
  for (int i=1; i<=n; i++) {
    if (!(n % i)) ans += i;
  }
  cout << 5*ans-24;
}
 
int main(void) {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
 
  solve();
  return 0;
}