Q: What is the sum of all factors of the number 85,863,440 excluding 85,863,440?

A: 129,128,008

Why is 129,128,008 the sum of all factors of 85,863,440, excluding 85,863,440?

The factors of the number 85,863,440 are: 1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 82561, 165122, 330244, 412805, 660488, 825610, 1073293, 1320976, 1651220, 2146586, 3302440, 4293172, 5366465, 6604880, 8586344, 10732930, 17172688, 21465860, 42931720, 85863440.

If you add them up, you will get the total of 85,863,569. Now subtract 85,863,440 to get 129,128,008