Q: What is the sum of all factors of the number 142,820 including 142,820?
A: 309,624
The factors of the number 142,820 are: 1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 193, 370, 386, 740, 772, 965, 1930, 3860, 7141, 14282, 28564, 35705, 71410, 142820.
If you add them up, you will get the total of 309,624.