#include <bits/stdc++.h>
using namespace std;

const int MOD = 1e9 + 7;

int ipow(int v, int n) {
  int r = 1;
  for (int i = n; i; i >>= 1) {
    if (i & 1) r = 1LL * r * v % MOD;
    v = 1LL * v * v % MOD;
  }
  return r;
}

int main() {
  int N, K;
  cin >> N >> K;

  vector<int> fac(N + 1);
  for (int i = fac[0] = 1; i <= N; ++i) fac[i] = 1LL * fac[i - 1] * i % MOD;

  vector<int> ifac(N + 1);
  ifac[N] = ipow(fac[N], MOD - 2);
  for (int i = N; i; --i) ifac[i - 1] = 1LL * ifac[i] * i % MOD;

  auto choose = [&](int n, int m) {
    return 1LL * fac[n] * ifac[m] % MOD * ifac[n - m] % MOD;
  };

  vector<int> f(N);
  for (int i = 1; i < N; ++i) {
    if (N % i == 0 && K % (N / i) == 0) {
      f[i] = choose(N / (N / i), K / (N / i));
    }
  }

  for (int i = 1; i < N; ++i) {
    for (int j = i + i; j < N; j += i) {
      if (N % j == 0 && K % (N / j) == 0) (f[j] -= f[i]) %= MOD;
    }
  }

  int ans = 0;
  for (int i = 1; i < N; ++i) (ans += f[i]) % MOD;

  if (ans < 0) ans += MOD;

  cout << ans << endl;

  return 0;
}