Q: What is the sum of all factors of the number 123,988 including 123,988?
A: 219,520
The factors of the number 123,988 are: 1, 2, 4, 139, 223, 278, 446, 556, 892, 30997, 61994, 123988.
If you add them up, you will get the total of 219,520.