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

const int MX = 1E7 + 5;

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    vector<int> pr(MX), phi(MX);
    phi[1] = 1;
    vector<long long> ans(MX);
    for (int i = 2; i < MX; i++) {
        if (pr[i] == 0) {
            pr[i] = i;
            for (int j = i; j <= (MX - 1) / i; j++) {
                pr[i * j] = i;
            }
        }
        int t = i, p = pr[i];
        while (t % p == 0) {
            t /= p;
        }
        phi[i] = phi[t] * (i / t) / p * (p - 1);
        ans[i] = ans[i - 1] + phi[i] + (i - 1 - phi[i]) * 2;
    }
    int t; cin >> t;
    while (t--) {
        int u; cin >> u;
        cout << ans[u] << '\n';
    }
}