Q: What is the sum of all factors of the number 12,640 including 12,640?
A: 30,240
The factors of the number 12,640 are: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 158, 160, 316, 395, 632, 790, 1264, 1580, 2528, 3160, 6320, 12640.
If you add them up, you will get the total of 30,240.