Q: What is the sum of all factors of the number 1,257,978 excluding 1,257,978?
A: 1,294,278
The factors of the number 1,257,978 are: 1, 2, 3, 6, 71, 142, 213, 426, 2953, 5906, 8859, 17718, 209663, 419326, 628989, 1257978.
If you add them up, you will get the total of 1,257,979. Now subtract 1,257,978 to get 1,294,278