Q: What is the sum of all factors of the number 815,780 excluding 815,780?
A: 1,142,428
The factors of the number 815,780 are: 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 5827, 11654, 23308, 29135, 40789, 58270, 81578, 116540, 163156, 203945, 407890, 815780.
If you add them up, you will get the total of 815,781. Now subtract 815,780 to get 1,142,428