#include <bits/stdc++.h>
using namespace std;
#define rep(i, n) for (int i=0; i<n; i++)
#define pb push_back
typedef long long ll;

int main() {
    cin.tie(0); ios::sync_with_stdio(false);
    
    int MAX = 10000010;
    ll phi[MAX];
    rep(i, MAX) phi[i] = (ll)(i);
    
    for (int i=2; i<MAX; i++) {
        if (phi[i]==i) {
            for (int j=i; j<MAX; j+=i) {
                phi[j] = phi[j]/i*(i-1);
            }
        }
    }
    
    for (int i=1; i<MAX; i++) phi[i] += phi[i-1];
    
    int T; cin >> T;
    while (T--) {
        int N; cin >> N;
        ll ans = (ll)(N)*(N-1)-phi[N]+1;
        printf("%lld\n", ans);
    }
}