package main

import . "fmt"

func main() {
	var n,k int64
	Scan(&n,&k)
	var c int
	for i:=int64(1);i*i<=n;i++ {
		if (n-k)%i!=0 {
			continue
		}
		a1:=i+k
		a2:=(n-k)/i+k
		if n%a1==k {
			c++
		}
		if a1!=a2&&n%a2==k{
			c++
		}
	}
	Println(c)
}