Q: What is the sum of all factors of the number 19,880 including 19,880?
A: 51,840
The factors of the number 19,880 are: 1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 994, 1420, 1988, 2485, 2840, 3976, 4970, 9940, 19880.
If you add them up, you will get the total of 51,840.