Q: What is the sum of all factors of the number 872,415 excluding 872,415?
A: 639,849
The factors of the number 872,415 are: 1, 3, 5, 9, 15, 45, 19387, 58161, 96935, 174483, 290805, 872415.
If you add them up, you will get the total of 873,054. Now subtract 872,415 to get 639,849