Q: What is the sum of all factors of the number 386,990 excluding 386,990?
A: 309,610
The factors of the number 386,990 are: 1, 2, 5, 10, 38699, 77398, 193495, 386990.
If you add them up, you will get the total of 387,299. Now subtract 386,990 to get 309,610