#include <iostream>
#include <string>
#include <vector>
#include <queue>
#include <cmath>

const long long MOD=(long long)1e9+7;
const long long MAXN=1123456;
long long fac[MAXN];
long long ifac[MAXN];
long long inv[MAXN];

long long comb(long long n, long long k) {
  return fac[n]*ifac[k]%MOD*ifac[n-k]%MOD;
}

int main() {
  fac[0]=fac[1]=ifac[0]=ifac[1]=inv[0]=inv[1]=1;
  for (int i=2;i<MAXN;++i) {
    fac[i]=i*fac[i-1]%MOD;
  }
  for (int i=2;i<MAXN;++i) {
    inv[i]=MOD-inv[MOD%i]*(MOD/i)%MOD;
  }
  for (int i=1;i<MAXN;++i) {
    ifac[i]=inv[i]*ifac[i-1]%MOD;
  }
  long long N, K;
  std::cin>>N;
  std::cin>>K;
  long long ans=0;
  std::vector<long long> cnt(N+1, 0);
  for (long long i=2;i<=N;++i) {//i-fold symmetry
    if (K%i!=0) continue;
    if (N%i!=0) continue;
    for (int j=i*2;j<=N;j+=i) {
      cnt[j]=(cnt[j]+1-cnt[i])%MOD;
    }
    ans=(ans+(1-cnt[i])*comb(N/i, K/i)%MOD+MOD)%MOD;
  }
  std::cout<<ans<<std::endl;
  return 0;
}