Q: What is the sum of all factors of the number 154,280 excluding 154,280?

A: 277,720

Why is 277,720 the sum of all factors of 154,280, excluding 154,280?

The factors of the number 154,280 are: 1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 29, 35, 38, 40, 56, 58, 70, 76, 95, 116, 133, 140, 145, 152, 190, 203, 232, 266, 280, 290, 380, 406, 532, 551, 580, 665, 760, 812, 1015, 1064, 1102, 1160, 1330, 1624, 2030, 2204, 2660, 2755, 3857, 4060, 4408, 5320, 5510, 7714, 8120, 11020, 15428, 19285, 22040, 30856, 38570, 77140, 154280.

If you add them up, you will get the total of 154,557. Now subtract 154,280 to get 277,720