Q: What is the sum of all factors of the number 1,305,870 excluding 1,305,870?

A: 2,150,130

Why is 2,150,130 the sum of all factors of 1,305,870, excluding 1,305,870?

The factors of the number 1,305,870 are: 1, 2, 3, 5, 6, 10, 15, 19, 29, 30, 38, 57, 58, 79, 87, 95, 114, 145, 158, 174, 190, 237, 285, 290, 395, 435, 474, 551, 570, 790, 870, 1102, 1185, 1501, 1653, 2291, 2370, 2755, 3002, 3306, 4503, 4582, 5510, 6873, 7505, 8265, 9006, 11455, 13746, 15010, 16530, 22515, 22910, 34365, 43529, 45030, 68730, 87058, 130587, 217645, 261174, 435290, 652935, 1305870.

If you add them up, you will get the total of 1,305,872. Now subtract 1,305,870 to get 2,150,130