#include <iostream>
#include <fstream>
using namespace std;
ifstream in("h.in");
ofstream out("test.txt");

#define size 100001

int phi[size];

int main(){

    int n ,x;

    for(int i = 2; i<=size; ++i)
        phi[i] = i-1;
    for(int i = 2;2*i<=size;++i){
        for(int j = i+i;j<=size;j+=i)
            phi[j] -= phi[i];
    }

    in >> n;
    for(int i = 1;i<=n;++i){
        in >> x;
        cout<<2*x*phi[x]<<'\n';
    }



}