153 4

#include <iostream>
#include <cmath>
#include <thread>
#include <vector>

using namespace std;

bool nuberFound = false;

void getDivCount(int number) {
    if (sqrt(number) != (int)sqrt(number)) {
        int divCount = 0;
        int lastDiv = 2;
        int lookingAt = 2;
        while (lookingAt < number) {
            if (number % lookingAt == 0) {
                divCount++;
                lastDiv = lookingAt;
                if (divCount > 1600) break;
            }
            cout << "num: " << number << " | divCount: " << divCount << " | lastDiv: " << lastDiv << " | lookingAt: " << lookingAt << "\r";
            lookingAt++;
        }
        cout << endl;
        if (divCount == 1600) {
            cout << "last divisor: " << lastDiv;
            cout << "\n\n\nDone!";
            exit(0);
        }
    }
}

int main() {
    int number = 2095133040;
    vector<thread> threads;
    while (!nuberFound) {
        if (threads.size() > 100) {
            threads[threads.size() - 1].join();
            threads.pop_back();
        }
        threads.push_back(thread(getDivCount, number));
        number++;
        if (nuberFound) {
            for (thread& t : threads) {
                t.detach();
            }
            break;
        }
    }
}