import java.util.*;

public class Main {
    static boolean[] used;
    static int n;
	public static void main (String[] args) {
    	Scanner sc = new Scanner(System.in);
    	n = sc.nextInt();
    	used = new boolean[n + 1];
        int p = sc.nextInt();
        for (int i = 2; i <= Math.sqrt(p); i++) {
            if (p % i == 0) {
                setUse(i);
                p /= i;
                while (p % i == 0) {
                    p /= i;
                }
            }
        }
        if (p > 1) {
            setUse(p);
        }
        int count = 0;
        for (int i = 1; i <= n; i++) {
            if (used[i]) {
                count++;
            }
        }
    	System.out.println(count);
	}
	
	static void setUse(int x) {
	    if (used[x]) {
	        return;
	    }
	    used[x] = true;
	    for (int i = 2; i * x <= n; i++) {
	        used[i * x] = true;
	        setUse(i);
	    }
	}
}