Q: What is the sum of all factors of the number 209,280 excluding 209,280?

A: 463,920

Why is 463,920 the sum of all factors of 209,280, excluding 209,280?

The factors of the number 209,280 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 109, 120, 128, 160, 192, 218, 240, 320, 327, 384, 436, 480, 545, 640, 654, 872, 960, 1090, 1308, 1635, 1744, 1920, 2180, 2616, 3270, 3488, 4360, 5232, 6540, 6976, 8720, 10464, 13080, 13952, 17440, 20928, 26160, 34880, 41856, 52320, 69760, 104640, 209280.

If you add them up, you will get the total of 209,743. Now subtract 209,280 to get 463,920