#include<bits/stdc++.h>
using namespace std;
int main()
{
long long n;
cin>>n;
set<int>s;
for(int i=1;i*i<=n;i++)
{
if(n%i==0)
{
s.insert(i);
s.insert(n/i);
}
}
cout<<s.size()<<endl;
return 0;
}
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