Q: What is the sum of all factors of the number 404,404,104 excluding 404,404,104?

A: 684,377,016

Why is 684,377,016 the sum of all factors of 404,404,104, excluding 404,404,104?

The factors of the number 404,404,104 are: 1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 312, 1296167, 2592334, 3888501, 5184668, 7777002, 10369336, 15554004, 16850171, 31108008, 33700342, 50550513, 67400684, 101101026, 134801368, 202202052, 404404104.

If you add them up, you will get the total of 404,404,788. Now subtract 404,404,104 to get 684,377,016