The factors of the number 7,508,448 are: 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 29, 31, 32, 36, 48, 58, 62, 72, 87, 93, 96, 116, 124, 144, 174, 186, 232, 248, 261, 279, 288, 348, 372, 464, 496, 522, 558, 696, 744, 841, 899, 928, 992, 1044, 1116, 1392, 1488, 1682, 1798, 2088, 2232, 2523, 2697, 2784, 2976, 3364, 3596, 4176, 4464, 5046, 5394, 6728, 7192, 7569, 8091, 8352, 8928, 10092, 10788, 13456, 14384, 15138, 16182, 20184, 21576, 26071, 26912, 28768, 30276, 32364, 40368, 43152, 52142, 60552, 64728, 78213, 80736, 86304, 104284, 121104, 129456, 156426, 208568, 234639, 242208, 258912, 312852, 417136, 469278, 625704, 834272, 938556, 1251408, 1877112, 2502816, 3754224, 7508448.
If you add them up, you will get the total of 7,508,463. Now subtract 7,508,448 to get 15,318,720