Q: What is the sum of all factors of the number 20,480 excluding 20,480?
A: 28,666
The factors of the number 20,480 are: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2048, 2560, 4096, 5120, 10240, 20480.
If you add them up, you will get the total of 20,508. Now subtract 20,480 to get 28,666