Q: What is the sum of all factors of the number 1,991,515 excluding 1,991,515?
A: 398,309
The factors of the number 1,991,515 are: 1, 5, 398303, 1991515.
If you add them up, you will get the total of 1,991,913. Now subtract 1,991,515 to get 398,309