The factors of the number 255,077,424 are: 1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 31, 36, 42, 48, 54, 56, 62, 63, 72, 81, 84, 93, 108, 112, 124, 126, 144, 162, 168, 186, 189, 216, 217, 248, 252, 279, 324, 336, 372, 378, 432, 434, 496, 504, 558, 567, 648, 651, 744, 756, 837, 868, 907, 1008, 1116, 1134, 1296, 1302, 1488, 1512, 1674, 1736, 1814, 1953, 2232, 2268, 2511, 2604, 2721, 3024, 3348, 3472, 3628, 3906, 4464, 4536, 5022, 5208, 5442, 5859, 6349, 6696, 7256, 7812, 8163, 9072, 10044, 10416, 10884, 11718, 12698, 13392, 14512, 15624, 16326, 17577, 19047, 20088, 21768, 23436, 24489, 25396, 28117, 31248, 32652, 35154, 38094, 40176, 43536, 46872, 48978, 50792, 56234, 57141, 65304, 70308, 73467, 76188, 84351, 93744, 97956, 101584, 112468, 114282, 130608, 140616, 146934, 152376, 168702, 171423, 195912, 196819, 224936, 228564, 253053, 281232, 293868, 304752, 337404, 342846, 391824, 393638, 449872, 457128, 506106, 514269, 587736, 590457, 674808, 685692, 759159, 787276, 914256, 1012212, 1028538, 1175472, 1180914, 1349616, 1371384, 1518318, 1574552, 1771371, 2024424, 2057076, 2277477, 2361828, 2742768, 3036636, 3149104, 3542742, 4048848, 4114152, 4554954, 4723656, 5314113, 6073272, 7085484, 8228304, 9109908, 9447312, 10628226, 12146544, 14170968, 15942339, 18219816, 21256452, 28341936, 31884678, 36439632, 42512904, 63769356, 85025808, 127538712, 255077424.
If you add them up, you will get the total of 871,912,448.