Q: What is the sum of all factors of the number 1,521,420 including 1,521,420?
A: 4,260,144
The factors of the number 1,521,420 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 25357, 50714, 76071, 101428, 126785, 152142, 253570, 304284, 380355, 507140, 760710, 1521420.
If you add them up, you will get the total of 4,260,144.