Q: What is the sum of all factors of the number 256,410,640 excluding 256,410,640?

A: 340,848,008

Why is 340,848,008 the sum of all factors of 256,410,640, excluding 256,410,640?

The factors of the number 256,410,640 are: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 601, 1202, 2404, 3005, 4808, 5333, 6010, 9616, 10666, 12020, 21332, 24040, 26665, 42664, 48080, 53330, 85328, 106660, 213320, 426640, 3205133, 6410266, 12820532, 16025665, 25641064, 32051330, 51282128, 64102660, 128205320, 256410640.

If you add them up, you will get the total of 256,410,980. Now subtract 256,410,640 to get 340,848,008