#include <fstream>
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <iostream>
#include <string.h>
using namespace std;

#define MAX 100001
short int viz[MAX];
int v[MAX];

void ciur()
{
	int i, j;
	
	for(i=1; i<=MAX; i++)
		v[i] = i-1;
	for(i=2; i<=MAX; i++)
		if(viz[i]==0)
			if(i*2 <= MAX)
				for(j=i*2; j<=MAX; j+=i)
				{
					viz[j] = 1;
					v[j] -= v[i];
				}
			else
				break;
}

int main()
{
	ifstream f("sum.in");
	ofstream g("sum.out");
	
	int t, n, x;
	long long sum;
	
	ciur();
	
	//Read
	f>>n;
	for(t=1; t<=n; t++)
	{
		f>>x;
		
		//Compute
		sum = v[x]*x*2;
		
		//Print
		g<<sum<<endl;
	}
}