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- #include <iostream>
- #include <cmath>
- using namespace std;
- int main()
- { int n, i, nr_div=0;
- cin >> n;
- if(n % 2 == 0)
- { nr_div=1;
- for(i = 2; i <= sqrt(n); i+=2)
- {
- if(n % i == 0)
- {
- nr_div++;
- }
- }
- }
- cout << nr_div;
- return 0;
- }
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