#include "bits/stdc++.h"
#define in std::cin
#define out std::cout
#define rep(i,N) for(LL i=0;i<N;++i)
typedef long long int LL;

std::map<LL, LL> decomposit_prime(LL n)
{
	LL d = 2;
	std::map<LL, LL>res;
	while (d * d <= n)
	{
		if (n % d == 0)
		{
			++res[d];
			n /= d;
		}
		else ++d;
	}
	++res[n];
	return res;
}

LL gcd(LL a, LL b)
{
	if (a < b) std::swap(a, b);
	LL r = a % b;
	while (r != 0)
	{
		a = b;
		b = r;
		r = a % b;
	}
	return b;
}

LL lcm(LL a, LL b)
{
	return a / gcd(a, b) * b;
}

int main()
{
	LL N, P;
	in >> N >> P;

	auto primes = decomposit_prime(P);
	std::vector<LL>nums;
	for (auto i : primes) nums.push_back(i.first);
	
	LL ans = 0;
	for (LL i = 2; i <= N; ++i)
	{
		for (LL j : nums)
		{
			if (lcm(i, j) <= N)
			{
				++ans;
				break;
			}
		}
	}
	out << ans << std::endl;
}