The factors of the number 276,848,208 are: 1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 28, 36, 37, 39, 42, 48, 52, 56, 63, 72, 74, 78, 84, 91, 104, 111, 112, 117, 126, 144, 148, 156, 168, 182, 208, 222, 234, 252, 259, 273, 296, 312, 333, 336, 364, 444, 468, 481, 504, 518, 546, 571, 592, 624, 666, 728, 777, 819, 888, 936, 962, 1008, 1036, 1092, 1142, 1332, 1443, 1456, 1554, 1638, 1713, 1776, 1872, 1924, 2072, 2184, 2284, 2331, 2664, 2886, 3108, 3276, 3367, 3426, 3848, 3997, 4144, 4329, 4368, 4568, 4662, 5139, 5328, 5772, 6216, 6552, 6734, 6852, 7423, 7696, 7994, 8658, 9136, 9324, 10101, 10278, 11544, 11991, 12432, 13104, 13468, 13704, 14846, 15988, 17316, 18648, 20202, 20556, 21127, 22269, 23088, 23982, 26936, 27408, 29692, 30303, 31976, 34632, 35973, 37296, 40404, 41112, 42254, 44538, 47964, 51961, 53872, 59384, 60606, 63381, 63952, 66807, 69264, 71946, 80808, 82224, 84508, 89076, 95928, 103922, 118768, 121212, 126762, 133614, 143892, 147889, 155883, 161616, 169016, 178152, 190143, 191856, 207844, 242424, 253524, 267228, 274651, 287784, 295778, 311766, 338032, 356304, 380286, 415688, 443667, 467649, 484848, 507048, 534456, 549302, 575568, 591556, 623532, 760572, 823953, 831376, 887334, 935298, 1014096, 1068912, 1098604, 1183112, 1247064, 1331001, 1521144, 1647906, 1774668, 1870596, 1922557, 2197208, 2366224, 2471859, 2494128, 2662002, 3042288, 3295812, 3549336, 3741192, 3845114, 4394416, 4943718, 5324004, 5767671, 6591624, 7098672, 7482384, 7690228, 9887436, 10648008, 11535342, 13183248, 15380456, 17303013, 19774872, 21296016, 23070684, 30760912, 34606026, 39549744, 46141368, 69212052, 92282736, 138424104, 276848208.
If you add them up, you will get the total of 981,076,096.