Q: What is the sum of all factors of the number 79,890 excluding 79,890?
A: 111,918
The factors of the number 79,890 are: 1, 2, 3, 5, 6, 10, 15, 30, 2663, 5326, 7989, 13315, 15978, 26630, 39945, 79890.
If you add them up, you will get the total of 80,001. Now subtract 79,890 to get 111,918