Q: What is the sum of all factors of the number 1,605,280 including 1,605,280?

A: 3,870,720

Why is 3,870,720 the sum of all factors of 1,605,280, including 1,605,280?

The factors of the number 1,605,280 are: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 127, 158, 160, 254, 316, 395, 508, 632, 635, 790, 1016, 1264, 1270, 1580, 2032, 2528, 2540, 3160, 4064, 5080, 6320, 10033, 10160, 12640, 20066, 20320, 40132, 50165, 80264, 100330, 160528, 200660, 321056, 401320, 802640, 1605280.

If you add them up, you will get the total of 3,870,720.