fl.c

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