The factors of the number 4,884,880 are: 1, 2, 4, 5, 7, 8, 10, 11, 13, 14, 16, 20, 22, 26, 28, 35, 40, 44, 52, 55, 56, 61, 65, 70, 77, 80, 88, 91, 104, 110, 112, 122, 130, 140, 143, 154, 176, 182, 208, 220, 244, 260, 280, 286, 305, 308, 364, 385, 427, 440, 455, 488, 520, 560, 572, 610, 616, 671, 715, 728, 770, 793, 854, 880, 910, 976, 1001, 1040, 1144, 1220, 1232, 1342, 1430, 1456, 1540, 1586, 1708, 1820, 2002, 2135, 2288, 2440, 2684, 2860, 3080, 3172, 3355, 3416, 3640, 3965, 4004, 4270, 4697, 4880, 5005, 5368, 5551, 5720, 6160, 6344, 6710, 6832, 7280, 7930, 8008, 8540, 8723, 9394, 10010, 10736, 11102, 11440, 12688, 13420, 15860, 16016, 17080, 17446, 18788, 20020, 22204, 23485, 26840, 27755, 31720, 34160, 34892, 37576, 40040, 43615, 44408, 46970, 53680, 55510, 61061, 63440, 69784, 75152, 80080, 87230, 88816, 93940, 111020, 122122, 139568, 174460, 187880, 222040, 244244, 305305, 348920, 375760, 444080, 488488, 610610, 697840, 976976, 1221220, 2442440, 4884880.
If you add them up, you will get the total of 15,499,008.