The factors of the number 28,648,656 are: 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 36, 37, 38, 48, 57, 72, 74, 76, 111, 114, 144, 148, 152, 171, 222, 228, 283, 296, 304, 333, 342, 444, 456, 566, 592, 666, 684, 703, 849, 888, 912, 1132, 1332, 1368, 1406, 1698, 1776, 2109, 2264, 2547, 2664, 2736, 2812, 3396, 4218, 4528, 5094, 5328, 5377, 5624, 6327, 6792, 8436, 10188, 10471, 10754, 11248, 12654, 13584, 16131, 16872, 20376, 20942, 21508, 25308, 31413, 32262, 33744, 40752, 41884, 43016, 48393, 50616, 62826, 64524, 83768, 86032, 94239, 96786, 101232, 125652, 129048, 167536, 188478, 193572, 198949, 251304, 258096, 376956, 387144, 397898, 502608, 596847, 753912, 774288, 795796, 1193694, 1507824, 1591592, 1790541, 2387388, 3183184, 3581082, 4774776, 7162164, 9549552, 14324328, 28648656.
If you add them up, you will get the total of 86,983,520.