Q: What is the sum of all factors of the number 3,978,100 including 3,978,100?

A: 9,867,424

Why is 9,867,424 the sum of all factors of 3,978,100, including 3,978,100?

The factors of the number 3,978,100 are: 1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 700, 5683, 11366, 22732, 28415, 39781, 56830, 79562, 113660, 142075, 159124, 198905, 284150, 397810, 568300, 795620, 994525, 1989050, 3978100.

If you add them up, you will get the total of 9,867,424.