Q: What is the sum of all factors of the number 256,728 excluding 256,728?
A: 420,072
The factors of the number 256,728 are: 1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 57, 76, 114, 152, 228, 456, 563, 1126, 1689, 2252, 3378, 4504, 6756, 10697, 13512, 21394, 32091, 42788, 64182, 85576, 128364, 256728.
If you add them up, you will get the total of 257,148. Now subtract 256,728 to get 420,072