Q: What is the sum of all factors of the number 661,556,426 excluding 661,556,426?
A: 330,778,216
The factors of the number 661,556,426 are: 1, 2, 330778213, 661556426.
If you add them up, you will get the total of 661,556,756. Now subtract 661,556,426 to get 330,778,216