Q: What is the sum of all factors of the number 39,890 excluding 39,890?
A: 31,930
The factors of the number 39,890 are: 1, 2, 5, 10, 3989, 7978, 19945, 39890.
If you add them up, you will get the total of 39,921. Now subtract 39,890 to get 31,930