fl.cpp

#include <stdio.h>
#include <vector>
 
using namespace std;
 
int main() {
 
	int n;
	while(scanf("1/%d\n", &n) == 1) {
		int x, y;
		x = n;
		//printf("n = %d\n", n);
		int posibilities = 0;
		do {
			x++;
			y = (n * x) / (x - n);
			//printf("x = %d, y = %d", x, y);
 
			if((1.0f/x) + (1.0f/y) == (1.0f/n)) {
				posibilities++;
			}
		}
		while(x != y);
		printf("%d\n", posibilities);
 
	}
 
}