Q: What is the sum of all factors of the number 61,780 excluding 61,780?
A: 68,000
The factors of the number 61,780 are: 1, 2, 4, 5, 10, 20, 3089, 6178, 12356, 15445, 30890, 61780.
If you add them up, you will get the total of 61,848. Now subtract 61,780 to get 68,000