Q: What is the sum of all factors of the number 42,180 excluding 42,180?

A: 85,500

Why is 85,500 the sum of all factors of 42,180, excluding 42,180?

The factors of the number 42,180 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 37, 38, 57, 60, 74, 76, 95, 111, 114, 148, 185, 190, 222, 228, 285, 370, 380, 444, 555, 570, 703, 740, 1110, 1140, 1406, 2109, 2220, 2812, 3515, 4218, 7030, 8436, 10545, 14060, 21090, 42180.

If you add them up, you will get the total of 42,265. Now subtract 42,180 to get 85,500