The factors of the number 6,493,440 are: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 32, 38, 40, 48, 57, 60, 64, 76, 80, 89, 95, 96, 114, 120, 128, 152, 160, 178, 190, 192, 228, 240, 256, 267, 285, 304, 320, 356, 380, 384, 445, 456, 480, 534, 570, 608, 640, 712, 760, 768, 890, 912, 960, 1068, 1140, 1216, 1280, 1335, 1424, 1520, 1691, 1780, 1824, 1920, 2136, 2280, 2432, 2670, 2848, 3040, 3382, 3560, 3648, 3840, 4272, 4560, 4864, 5073, 5340, 5696, 6080, 6764, 7120, 7296, 8455, 8544, 9120, 10146, 10680, 11392, 12160, 13528, 14240, 14592, 16910, 17088, 18240, 20292, 21360, 22784, 24320, 25365, 27056, 28480, 33820, 34176, 36480, 40584, 42720, 50730, 54112, 56960, 67640, 68352, 72960, 81168, 85440, 101460, 108224, 113920, 135280, 162336, 170880, 202920, 216448, 270560, 324672, 341760, 405840, 432896, 541120, 649344, 811680, 1082240, 1298688, 1623360, 2164480, 3246720, 6493440.
If you add them up, you will get the total of 6,493,455. Now subtract 6,493,440 to get 15,581,760