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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main()
  5. {
  6.     long long n;
  7.     cin>>n;
  8.     set<int>s;
  9.     for(int i=1;i*i<=n;i++)
  10.     {
  11.         if(n%i==0)
  12.         {
  13.             s.insert(i);
  14.             s.insert(n/i);
  15.         }
  16.     }
  17.     cout<<s.size()<<endl;
  18.     return 0;
  19. }
Success #stdin #stdout 0s 4448KB
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https://ideone.com/D2uwH0
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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