#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < (n); ++i)

using namespace std;
using ll = long long;

// totient table
vector<int> ps, pf, phi;
void sieve(int mx) {
    pf.resize(mx+1);
    phi.resize(mx+1);
    phi[1] = 1;
    rep(i, mx+1) pf[i] = i;
    for (int i = 2; i <= mx; ++i) {
        if (pf[i] == i) {
            ps.push_back(i);
            phi[i] = i-1;
        }
        rep(j, ps.size()) {
            int x = ps[j]*i;
            if (x > mx) break;
            pf[x] = ps[j];
            if (i%ps[j] == 0) {
                phi[x] = phi[i]*ps[j];
                break;
            }
            phi[x] = phi[i]*(ps[j]-1);
        }
    }
}

int main() {
    sieve(1e7);
    vector<ll> s(1e7+1);
    rep(i, 1e7) s[i+1] = s[i]+phi[i+1];
    
    cin.tie(nullptr) -> sync_with_stdio(false);
    
    int t;
    cin >> t;
    
    while (t--) {
        int n;
        cin >> n;
        ll ans = (ll)n*(n-1) - s[n] + 1;
        cout << ans << '\n';
    }
    
    return 0;
}