Q: What is the sum of all factors of the number 815,390 excluding 815,390?
A: 675,442
The factors of the number 815,390 are: 1, 2, 5, 10, 67, 134, 335, 670, 1217, 2434, 6085, 12170, 81539, 163078, 407695, 815390.
If you add them up, you will get the total of 816,065. Now subtract 815,390 to get 675,442