The factors of the number 4,258,128 are: 1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 19, 21, 23, 24, 28, 29, 38, 42, 46, 48, 56, 57, 58, 69, 76, 84, 87, 92, 112, 114, 116, 133, 138, 152, 161, 168, 174, 184, 203, 228, 232, 266, 276, 304, 322, 336, 348, 368, 399, 406, 437, 456, 464, 483, 532, 551, 552, 609, 644, 667, 696, 798, 812, 874, 912, 966, 1064, 1102, 1104, 1218, 1288, 1311, 1334, 1392, 1596, 1624, 1653, 1748, 1932, 2001, 2128, 2204, 2436, 2576, 2622, 2668, 3059, 3192, 3248, 3306, 3496, 3857, 3864, 4002, 4408, 4669, 4872, 5244, 5336, 6118, 6384, 6612, 6992, 7714, 7728, 8004, 8816, 9177, 9338, 9744, 10488, 10672, 11571, 12236, 12673, 13224, 14007, 15428, 16008, 18354, 18676, 20976, 23142, 24472, 25346, 26448, 28014, 30856, 32016, 36708, 37352, 38019, 46284, 48944, 50692, 56028, 61712, 73416, 74704, 76038, 88711, 92568, 101384, 112056, 146832, 152076, 177422, 185136, 202768, 224112, 266133, 304152, 354844, 532266, 608304, 709688, 1064532, 1419376, 2129064, 4258128.
If you add them up, you will get the total of 14,284,800.