Q: What is the sum of all factors of the number 402,432 excluding 402,432?

A: 678,384

Why is 678,384 the sum of all factors of 402,432, excluding 402,432?

The factors of the number 402,432 are: 1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 131, 192, 256, 262, 384, 393, 512, 524, 768, 786, 1024, 1048, 1536, 1572, 2096, 3072, 3144, 4192, 6288, 8384, 12576, 16768, 25152, 33536, 50304, 67072, 100608, 134144, 201216, 402432.

If you add them up, you will get the total of 403,110. Now subtract 402,432 to get 678,384