Q: What is the sum of all factors of the number 1,287,020 including 1,287,020?

A: 3,205,440

Why is 3,205,440 the sum of all factors of 1,287,020, including 1,287,020?

The factors of the number 1,287,020 are: 1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 317, 406, 580, 634, 812, 1015, 1268, 1585, 2030, 2219, 3170, 4060, 4438, 6340, 8876, 9193, 11095, 18386, 22190, 36772, 44380, 45965, 64351, 91930, 128702, 183860, 257404, 321755, 643510, 1287020.

If you add them up, you will get the total of 3,205,440.