Q: What is the sum of all factors of the number 205,140 excluding 205,140?

A: 415,788

Why is 415,788 the sum of all factors of 205,140, excluding 205,140?

The factors of the number 205,140 are: 1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 263, 390, 526, 780, 789, 1052, 1315, 1578, 2630, 3156, 3419, 3945, 5260, 6838, 7890, 10257, 13676, 15780, 17095, 20514, 34190, 41028, 51285, 68380, 102570, 205140.

If you add them up, you will get the total of 205,555. Now subtract 205,140 to get 415,788