Q: What is the sum of all factors of the number 800,840 excluding 800,840?
A: 1,001,140
The factors of the number 800,840 are: 1, 2, 4, 5, 8, 10, 20, 40, 20021, 40042, 80084, 100105, 160168, 200210, 400420, 800840.
If you add them up, you will get the total of 800,841. Now subtract 800,840 to get 1,001,140