Q: What is the sum of all factors of the number 1,221,520 excluding 1,221,520?
A: 1,618,700
The factors of the number 1,221,520 are: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 15269, 30538, 61076, 76345, 122152, 152690, 244304, 305380, 610760, 1221520.
If you add them up, you will get the total of 1,221,521. Now subtract 1,221,520 to get 1,618,700