The factors of the number 4,408,560 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 90, 104, 108, 117, 120, 130, 135, 144, 156, 157, 180, 195, 208, 216, 234, 240, 260, 270, 312, 314, 351, 360, 390, 432, 468, 471, 520, 540, 585, 624, 628, 702, 720, 780, 785, 936, 942, 1040, 1080, 1170, 1256, 1404, 1413, 1560, 1570, 1755, 1872, 1884, 2041, 2160, 2340, 2355, 2512, 2808, 2826, 3120, 3140, 3510, 3768, 4082, 4239, 4680, 4710, 5616, 5652, 6123, 6280, 7020, 7065, 7536, 8164, 8478, 9360, 9420, 10205, 11304, 12246, 12560, 14040, 14130, 16328, 16956, 18369, 18840, 20410, 21195, 22608, 24492, 28080, 28260, 30615, 32656, 33912, 36738, 37680, 40820, 42390, 48984, 55107, 56520, 61230, 67824, 73476, 81640, 84780, 91845, 97968, 110214, 113040, 122460, 146952, 163280, 169560, 183690, 220428, 244920, 275535, 293904, 339120, 367380, 440856, 489840, 551070, 734760, 881712, 1102140, 1469520, 2204280, 4408560.
If you add them up, you will get the total of 16,457,280.