Q: What is the sum of all factors of the number 156,640 excluding 156,640?

A: 251,600

Why is 251,600 the sum of all factors of 156,640, excluding 156,640?

The factors of the number 156,640 are: 1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 89, 110, 160, 176, 178, 220, 352, 356, 440, 445, 712, 880, 890, 979, 1424, 1760, 1780, 1958, 2848, 3560, 3916, 4895, 7120, 7832, 9790, 14240, 15664, 19580, 31328, 39160, 78320, 156640.

If you add them up, you will get the total of 156,891. Now subtract 156,640 to get 251,600