#include <stdio.h>
int main(void){
	long val = 0;
	scanf("%ld",&val);
	
	
	int count = 0;
	for(long i = 1;i <= val;i ++){
		for(long j = 1;j <= val; j ++){
			if(i * j == val){
				count ++;
			}
		}
	}
	printf("%d",count);
}