Q: What is the sum of all factors of the number 128,740 including 128,740?
A: 278,712
The factors of the number 128,740 are: 1, 2, 4, 5, 10, 20, 41, 82, 157, 164, 205, 314, 410, 628, 785, 820, 1570, 3140, 6437, 12874, 25748, 32185, 64370, 128740.
If you add them up, you will get the total of 278,712.