The factors of the number 5,916,288 are: 1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 31, 32, 42, 48, 56, 62, 64, 71, 84, 93, 96, 112, 124, 128, 142, 168, 186, 192, 213, 217, 224, 248, 284, 336, 372, 384, 426, 434, 448, 496, 497, 568, 651, 672, 744, 852, 868, 896, 992, 994, 1136, 1302, 1344, 1488, 1491, 1704, 1736, 1984, 1988, 2201, 2272, 2604, 2688, 2976, 2982, 3408, 3472, 3968, 3976, 4402, 4544, 5208, 5952, 5964, 6603, 6816, 6944, 7952, 8804, 9088, 10416, 11904, 11928, 13206, 13632, 13888, 15407, 15904, 17608, 20832, 23856, 26412, 27264, 27776, 30814, 31808, 35216, 41664, 46221, 47712, 52824, 61628, 63616, 70432, 83328, 92442, 95424, 105648, 123256, 140864, 184884, 190848, 211296, 246512, 281728, 369768, 422592, 493024, 739536, 845184, 986048, 1479072, 1972096, 2958144, 5916288.
If you add them up, you will get the total of 18,800,640.