Q: What is the sum of all factors of the number 18,420,860 excluding 18,420,860?

A: 22,685,212

Why is 22,685,212 the sum of all factors of 18,420,860, excluding 18,420,860?

The factors of the number 18,420,860 are: 1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 578, 1156, 1445, 2890, 3187, 5780, 6374, 12748, 15935, 31870, 54179, 63740, 108358, 216716, 270895, 541790, 921043, 1083580, 1842086, 3684172, 4605215, 9210430, 18420860.

If you add them up, you will get the total of 18,420,882. Now subtract 18,420,860 to get 22,685,212