Q: What is the sum of all factors of the number 1,377,980 excluding 1,377,980?
A: 1,515,820
The factors of the number 1,377,980 are: 1, 2, 4, 5, 10, 20, 68899, 137798, 275596, 344495, 688990, 1377980.
If you add them up, you will get the total of 1,377,981. Now subtract 1,377,980 to get 1,515,820