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

#define MAX 100001
int v[MAX];

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

int main()
{
	FILE *f=fopen("sum.in","r");
	FILE *g=fopen("sum.out","w");
	
	int t, n, x;
	long long sum;
	
	ciur();
	
	//Read
	fscanf(f,"%d",&n);
	for(t=1; t<=n; t++)
	{
		//f>>x;
		fscanf(f,"%d",&x);
		
		//Compute
		//sum = v[x]*x*2;
		
		//Print
		//fprintf(g,"%lld\n",sum);
		printf("%lld\n", 2 * (long long)v[x] * x);
	}
}