#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <algorithm>
#include <utility>
#include <functional>
#include <cstring>
#include <queue>
#include <stack>
#include <math.h>
#include <iterator>
#include <vector>
#include <string>
#include <set>
#include <math.h>
#include <iostream>
#include <random>
#include <map>
#include <fstream>
#include <iomanip>
#include <time.h>
#include <stdlib.h>
#include <list>
#include <typeinfo>
#include <list>
#include <set>
#include <assert.h>
#include <complex>
#include <omp.h>
using namespace std;
#define eps 0.000001
#define LONG_INF 10000000000000
#define GOLD 1.61803398874989484820458
#define seg_size 65536*4
#define REP(i,n) for(long long i = 0;i < n;++i)
unsigned long xor128() {
	static unsigned long x = time(NULL), y = 362436069, z = 521288629, w = 88675123;
	unsigned long t = (x ^ (x << 11));
	x = y; y = z; z = w;
	return (w = (w ^ (w >> 19)) ^ (t ^ (t >> 8)));
}
int gcd(int a, int b) {
	if (b == 0) return a;
	return gcd(b, a % b);
}
long long visited[2000000] = {};
long long nekoi[2000000] = {};
int main() {
	int n, k;
	cin >> n >> k;
	if (k == 1) {
		cout << 1 << endl;
		return 0;
	}
	visited[k] = 1;
	queue<int> now;
	now.push(k);
	while (now.empty() == false) {
		int next = now.front();
		now.pop();
		for (int i = 2; i <= sqrt(next); ++i) {
			if (next % i == 0) {
				int nya = i;
				if (nekoi[nya] == 0) {
					nekoi[nya] = 1;
					for (int j = 1; j * nya <= n; ++j) {
						if (visited[j * nya] == 0) {
							visited[j * nya] = 1;
							now.push(j * nya);
						}
						nekoi[j * nya] = 1;
					}
				}
				nya = next / i;
				if (nekoi[nya] == 0) {
					nekoi[nya] = 1;
					for (int j = 1; j * nya <= n; ++j) {
						if (visited[j * nya] == 0) {
							visited[j * nya] = 1;
							now.push(j * nya);
						}
						nekoi[j * nya] = 1;
					}
				}
			}
		}
	}
	long long ans = 0;
	for (int i = 1; i <= n; ++i) {
		ans += visited[i];
	}
	cout << ans << endl;
	return 0;
}