Нетривиальные числа

#include <iostream>
#include <string>
#include <map>
#include <set>
#include <algorithm>
#include <vector>
#include <stdio.h>
#include <cmath>
#include <math.h>
#include <queue>
#include <stack>
#include <climits>
#include <deque>
#include <ctime>

using namespace std;

typedef long long ll;
typedef unsigned long long ull;
typedef unsigned int ui;

int main()
{
    const int h = 1000001;
    vector<int>lk(h);
    lk[1] = 1;

    ll I, J;
    cin >> I >> J;
    for (int i = 2; i <= J; i++)
    {
        lk[i]++;
        for (int j = i; j <= J; j += i)
        {
            lk[j] += i;
        }
    }

    double min = 1e7;
    int answ = -1;
    for (int i = I; i <= J; i++)
    {
        double j = double(lk[i]) / double(i);
        if ( j < min)
        {
            min = j;
            answ = i;
        }
    }

    cout << answ;
    system("pause");
    return 0;
}