#include <stdio.h>
#include <atcoder/all>
#include <bits/stdc++.h>
using namespace std;
using namespace atcoder;
using mint = modint998244353;
#define rep(i,n) for (int i = 0; i < (n); ++i)
#define Inf32 1000000001
#define Inf64 1000000000000000001


int main(){
	
	
	
	vector<long long> s(10000001,0);
	rep(i,s.size())s[i] = i;
	for(int i=2;i<s.size();i++){
		if(s[i]!=i)continue;
		for(int j=i;j<s.size();j+=i){
			s[j] *= (i-1);
			s[j] /= i;
		}
	}
	rep(i,s.size()){
		s[i] += (i-s[i])*2LL;
		s[i] -= 2;
		if(i<=1)s[i] = 0;
		if(i>0)s[i] += s[i-1];
	}
	
	int _t;
	cin>>_t;
	rep(_,_t){
		int n;
		cin>>n;
		cout<<s[n]<<endl;
	}
	
	return 0;
}