Q: What is the sum of all factors of the number 1,287,266 excluding 1,287,266?
A: 643,636
The factors of the number 1,287,266 are: 1, 2, 643633, 1287266.
If you add them up, you will get the total of 1,287,909. Now subtract 1,287,266 to get 643,636