Q: What is the sum of all factors of the number 420,201,645 excluding 420,201,645?
A: 254,318,355
The factors of the number 420,201,645 are: 1, 3, 5, 15, 307, 921, 1535, 4605, 91249, 273747, 456245, 1368735, 28013443, 84040329, 140067215, 420201645.
If you add them up, you will get the total of 420,201,899. Now subtract 420,201,645 to get 254,318,355