Q: What is the sum of all factors of the number 1,247,978 excluding 1,247,978?
A: 623,992
The factors of the number 1,247,978 are: 1, 2, 623989, 1247978.
If you add them up, you will get the total of 1,248,601. Now subtract 1,247,978 to get 623,992