Q: What is the sum of all factors of the number 31,640 including 31,640?
A: 82,080
The factors of the number 31,640 are: 1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 113, 140, 226, 280, 452, 565, 791, 904, 1130, 1582, 2260, 3164, 3955, 4520, 6328, 7910, 15820, 31640.
If you add them up, you will get the total of 82,080.