include <bits/stdc++.h>

using namespace std; int main() { long n,m=0; cin>>n; for(int i=1; i<=n; i++) if(n%i==n/i){ m++; } cout<<m<<endl; } // 100%

n = int(input()) p = 0 for m in range(2, n): if (n // m == n % m): p += 1 print(p)

Smooth Divisors