The factors of the number 6,606,720 are: 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 32, 36, 37, 40, 45, 48, 60, 62, 64, 72, 74, 80, 90, 93, 96, 111, 120, 124, 128, 144, 148, 155, 160, 180, 185, 186, 192, 222, 240, 248, 279, 288, 296, 310, 320, 333, 360, 370, 372, 384, 444, 465, 480, 496, 555, 558, 576, 592, 620, 640, 666, 720, 740, 744, 888, 930, 960, 992, 1110, 1116, 1147, 1152, 1184, 1240, 1332, 1395, 1440, 1480, 1488, 1665, 1776, 1860, 1920, 1984, 2220, 2232, 2294, 2368, 2480, 2664, 2790, 2880, 2960, 2976, 3330, 3441, 3552, 3720, 3968, 4440, 4464, 4588, 4736, 4960, 5328, 5580, 5735, 5760, 5920, 5952, 6660, 6882, 7104, 7440, 8880, 8928, 9176, 9920, 10323, 10656, 11160, 11470, 11840, 11904, 13320, 13764, 14208, 14880, 17205, 17760, 17856, 18352, 19840, 20646, 21312, 22320, 22940, 23680, 26640, 27528, 29760, 34410, 35520, 35712, 36704, 41292, 42624, 44640, 45880, 51615, 53280, 55056, 59520, 68820, 71040, 73408, 82584, 89280, 91760, 103230, 106560, 110112, 137640, 146816, 165168, 178560, 183520, 206460, 213120, 220224, 275280, 330336, 367040, 412920, 440448, 550560, 660672, 734080, 825840, 1101120, 1321344, 1651680, 2202240, 3303360, 6606720.
If you add them up, you will get the total of 24,186,240.