Q: What is the sum of all factors of the number 138,980 including 138,980?
A: 291,900
The factors of the number 138,980 are: 1, 2, 4, 5, 10, 20, 6949, 13898, 27796, 34745, 69490, 138980.
If you add them up, you will get the total of 291,900.