Q: What is the sum of all factors of the number 249,390 excluding 249,390?

A: 441,378

Why is 441,378 the sum of all factors of 249,390, excluding 249,390?

The factors of the number 249,390 are: 1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 34, 45, 51, 85, 90, 102, 153, 163, 170, 255, 306, 326, 489, 510, 765, 815, 978, 1467, 1530, 1630, 2445, 2771, 2934, 4890, 5542, 7335, 8313, 13855, 14670, 16626, 24939, 27710, 41565, 49878, 83130, 124695, 249390.

If you add them up, you will get the total of 249,831. Now subtract 249,390 to get 441,378