Q: What is the sum of all factors of the number 680,390 excluding 680,390?
A: 609,130
The factors of the number 680,390 are: 1, 2, 5, 10, 19, 38, 95, 190, 3581, 7162, 17905, 35810, 68039, 136078, 340195, 680390.
If you add them up, you will get the total of 680,999. Now subtract 680,390 to get 609,130