public static void main(String[] args) {
   int result = AbstractFactorCounter.test(new SequentialFactorCounter(new UselessInteger()));
   System.out.println(result);
 }
 @Override
 public void startCounting() {
   for (int i = 0; i <= 4_999_999; ++i) count.addAndGet(AbstractFactorCounter.countFactors(i));
 }