#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
#include <cstdio>
#include <cstring>
#include <cmath>
using namespace std;
using ll = long long;

constexpr int P = 1000000007;

ll powmod(ll n, ll k) {
    ll r = 1, t = n % P;
    for (; k != 0; k /= 2) {
        if (k & 1) r = r * t % P;
        t = t * t % P;
    }
    return r;
}
ll inv(ll n) {
    return powmod(n, P - 2);
}

vector<int> f0, f1;
void init(int n) {
    f0.resize(n + 1);
    f0[0] = 1;
    for (int i = 1; i <= n; i++) {
        f0[i] = (ll)f0[i - 1] * i % P;
    }
    f1.resize(n + 1);
    f1[n] = inv(f0[n]);
    for (int i = n; i > 0; i--) {
        f1[i - 1] = (ll)f1[i] * i % P;
    }
}
ll fact(int k) {
    return f0[k];
}
ll comb(int n, int k) {
    if (n < k || k < 0) return 0;
    return (ll)f0[n] * f1[k] % P * f1[n - k] % P;
}

int main() {
    int n, k;
    cin >> n >> k;

    if (n == 1 && k == 1) {
        cout << 0 << endl;
        exit(0);
    }
    if (n == k) {
        cout << 1 << endl;
        exit(0);
    }

    init(n);

    ll r = 0;
    //長さlのm個に分ける それぞれにc個入る
    //長さがlの約数のやつはカウント済み
    vector<ll> b(n / 2 + 1, -1);
    for (int l = 2; l <= n / 2; l++) {
        if (n % l == 0) {
            int m = n / l;
            if (k % m == 0) {
                int c = k / m;
                b[l] = comb(l, c);
            }
        }
    }
    for (int l = 2; l <= n / 2; l++) {
        if (n % l == 0) {
            int m = n / l;
            if (k % m == 0) {
                r += b[l];
                for (int i = l * 2; i <= n / 2; i += l) {
                    b[i] -= b[l];
                    b[i] %= P;
                }
            }
        }
    }

    r %= P;
    if (r < 0) r += P;

    cout << r << endl;

    return 0;
}