Q: What is the sum of all factors of the number 1,284,420 including 1,284,420?
A: 3,596,544
The factors of the number 1,284,420 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 21407, 42814, 64221, 85628, 107035, 128442, 214070, 256884, 321105, 428140, 642210, 1284420.
If you add them up, you will get the total of 3,596,544.