Q: What is the sum of all factors of the number 643,930 excluding 643,930?
A: 680,870
The factors of the number 643,930 are: 1, 2, 5, 7, 10, 14, 35, 70, 9199, 18398, 45995, 64393, 91990, 128786, 321965, 643930.
If you add them up, you will get the total of 644,610. Now subtract 643,930 to get 680,870