Q: What is the sum of all factors of the number 19,640 including 19,640?
A: 44,280
The factors of the number 19,640 are: 1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 2455, 3928, 4910, 9820, 19640.
If you add them up, you will get the total of 44,280.