Q: What is the sum of all factors of the number 1,291,400 excluding 1,291,400?
A: 1,989,640
The factors of the number 1,291,400 are: 1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 200, 220, 275, 440, 550, 587, 1100, 1174, 2200, 2348, 2935, 4696, 5870, 6457, 11740, 12914, 14675, 23480, 25828, 29350, 32285, 51656, 58700, 64570, 117400, 129140, 161425, 258280, 322850, 645700, 1291400.
If you add them up, you will get the total of 1,291,401. Now subtract 1,291,400 to get 1,989,640