Q: What is the sum of all factors of the number 123,456,784 excluding 123,456,784?

A: 145,758,624

Why is 145,758,624 the sum of all factors of 123,456,784, excluding 123,456,784?

The factors of the number 123,456,784 are: 1, 2, 4, 8, 11, 16, 22, 43, 44, 86, 88, 121, 172, 176, 242, 344, 473, 484, 688, 946, 968, 1483, 1892, 1936, 2966, 3784, 5203, 5932, 7568, 10406, 11864, 16313, 20812, 23728, 32626, 41624, 63769, 65252, 83248, 127538, 130504, 179443, 255076, 261008, 358886, 510152, 701459, 717772, 1020304, 1402918, 1435544, 2805836, 2871088, 5611672, 7716049, 11223344, 15432098, 30864196, 61728392, 123456784.

If you add them up, you will get the total of 123,456,929. Now subtract 123,456,784 to get 145,758,624