#include <stdio.h>
#include <math.h>

void main(void) {
    long long int n = 0;
    scanf("%lld",&n);
    double plus = sqrt(n);
    int count = 0;
    for(int i = 1 ; i <= plus ; i++){
        if(n%i == 0 && n/i > 0 && n/i != i){
            count += 2;
        }else if(n%i == 0 && n/i > 0 && n/i == i){
            count++;
        }
    }
    printf("%d",count);
}