Q: What is the sum of all factors of the number 1,281,554 excluding 1,281,554?
A: 640,780
The factors of the number 1,281,554 are: 1, 2, 640777, 1281554.
If you add them up, you will get the total of 1,282,194. Now subtract 1,281,554 to get 640,780