Q: What is the sum of all factors of the number 123,890 excluding 123,890?
A: 116,518
The factors of the number 123,890 are: 1, 2, 5, 10, 13, 26, 65, 130, 953, 1906, 4765, 9530, 12389, 24778, 61945, 123890.
If you add them up, you will get the total of 124,006. Now subtract 123,890 to get 116,518