Q: What is the sum of all factors of the number 121,220 excluding 121,220?

A: 181,180

Why is 181,180 the sum of all factors of 121,220, excluding 121,220?

The factors of the number 121,220 are: 1, 2, 4, 5, 10, 11, 19, 20, 22, 29, 38, 44, 55, 58, 76, 95, 110, 116, 145, 190, 209, 220, 290, 319, 380, 418, 551, 580, 638, 836, 1045, 1102, 1276, 1595, 2090, 2204, 2755, 3190, 4180, 5510, 6061, 6380, 11020, 12122, 24244, 30305, 60610, 121220.

If you add them up, you will get the total of 121,401. Now subtract 121,220 to get 181,180