The factors of the number 3,240,640 are: 1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 32, 38, 40, 41, 52, 64, 65, 76, 80, 82, 95, 104, 130, 152, 160, 164, 190, 205, 208, 247, 260, 304, 320, 328, 380, 410, 416, 494, 520, 533, 608, 656, 760, 779, 820, 832, 988, 1040, 1066, 1216, 1235, 1312, 1520, 1558, 1640, 1976, 2080, 2132, 2470, 2624, 2665, 3040, 3116, 3280, 3895, 3952, 4160, 4264, 4940, 5330, 6080, 6232, 6560, 7790, 7904, 8528, 9880, 10127, 10660, 12464, 13120, 15580, 15808, 17056, 19760, 20254, 21320, 24928, 31160, 34112, 39520, 40508, 42640, 49856, 50635, 62320, 79040, 81016, 85280, 101270, 124640, 162032, 170560, 202540, 249280, 324064, 405080, 648128, 810160, 1620320, 3240640.
If you add them up, you will get the total of 3,240,645. Now subtract 3,240,640 to get 5,720,480