Q: What is the sum of all factors of the number 54,400 excluding 54,400?

A: 87,890

Why is 87,890 the sum of all factors of 54,400, excluding 54,400?

The factors of the number 54,400 are: 1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 64, 68, 80, 85, 100, 128, 136, 160, 170, 200, 272, 320, 340, 400, 425, 544, 640, 680, 800, 850, 1088, 1360, 1600, 1700, 2176, 2720, 3200, 3400, 5440, 6800, 10880, 13600, 27200, 54400.

If you add them up, you will get the total of 54,487. Now subtract 54,400 to get 87,890