// IOI 2021
#include <bits/stdc++.h>
using namespace std;

#define endl '\n'
#define ends ' '
#define die(x) return cout << x << endl, 0
#define all(v) v.begin(), v.end()
#define sz(x) (int)(x.size())
void debug_out() { cerr << endl; }
template <typename Head, typename... Tail>
void debug_out(Head H, Tail... T) { cerr << ends << H; debug_out(T...); }
#define debug(...) cerr << "{" << #__VA_ARGS__ << "}:", debug_out(__VA_ARGS__)
typedef long long ll;
typedef pair<int, int> pii;
const ll INF = 2e9;
const ll MOD = 1e9 + 7;
 
////////////////////////////////////////////////////////////////////

const int N = 1e5 + 5;

int F[N];

int Power(int a, int b) {
	int res = 1;
	for (; b; b >>= 1, a = 1LL * a * a % MOD) if (b & 1) res = 1LL * res * a % MOD;
	return res;
}

int main() {

	ios::sync_with_stdio(0), cin.tie(0), cout.tie(0);
	mt19937 Rnd(time(0));

	int n, k, ans = 0; cin >> n >> k;
	for (int i = k; i >= 1; i--) {
		F[i] = Power(k / i, n);
		for (int j = i + i; j <= k; j += i) F[i] = (F[i] + MOD - F[j]) % MOD;
		ans = (ans + 1LL * i * F[i] % MOD) % MOD;
	}
	cout << ans << endl;

	return 0;
}
