Q: What is the sum of all factors of the number 1,213,780 excluding 1,213,780?
A: 1,335,200
The factors of the number 1,213,780 are: 1, 2, 4, 5, 10, 20, 60689, 121378, 242756, 303445, 606890, 1213780.
If you add them up, you will get the total of 1,213,781. Now subtract 1,213,780 to get 1,335,200