Q: What is the sum of all factors of the number 201,280 excluding 201,280?

A: 319,928

Why is 319,928 the sum of all factors of 201,280, excluding 201,280?

The factors of the number 201,280 are: 1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 37, 40, 64, 68, 74, 80, 85, 136, 148, 160, 170, 185, 272, 296, 320, 340, 370, 544, 592, 629, 680, 740, 1088, 1184, 1258, 1360, 1480, 2368, 2516, 2720, 2960, 3145, 5032, 5440, 5920, 6290, 10064, 11840, 12580, 20128, 25160, 40256, 50320, 100640, 201280.

If you add them up, you will get the total of 201,599. Now subtract 201,280 to get 319,928