Q: What is the sum of all factors of the number 1,290,720 including 1,290,720?

A: 4,067,280

Why is 4,067,280 the sum of all factors of 1,290,720, including 1,290,720?

The factors of the number 1,290,720 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 2689, 5378, 8067, 10756, 13445, 16134, 21512, 26890, 32268, 40335, 43024, 53780, 64536, 80670, 86048, 107560, 129072, 161340, 215120, 258144, 322680, 430240, 645360, 1290720.

If you add them up, you will get the total of 4,067,280.