The factors of the number 251,072,472 are: 1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 31, 42, 49, 56, 62, 71, 84, 93, 97, 98, 124, 142, 147, 168, 186, 194, 196, 213, 217, 248, 284, 291, 294, 372, 388, 392, 426, 434, 497, 568, 582, 588, 651, 679, 744, 776, 852, 868, 994, 1164, 1176, 1302, 1358, 1491, 1519, 1704, 1736, 1988, 2037, 2201, 2328, 2604, 2716, 2982, 3007, 3038, 3479, 3976, 4074, 4402, 4557, 4753, 5208, 5432, 5964, 6014, 6076, 6603, 6887, 6958, 8148, 8804, 9021, 9114, 9506, 10437, 11928, 12028, 12152, 13206, 13774, 13916, 14259, 15407, 16296, 17608, 18042, 18228, 19012, 20661, 20874, 21049, 24056, 26412, 27548, 27832, 28518, 30814, 36084, 36456, 38024, 41322, 41748, 42098, 46221, 48209, 52824, 55096, 57036, 61628, 63147, 72168, 82644, 83496, 84196, 92442, 96418, 107849, 114072, 123256, 126294, 144627, 147343, 165288, 168392, 184884, 192836, 213497, 215698, 252588, 289254, 294686, 323547, 337463, 369768, 385672, 426994, 431396, 442029, 505176, 578508, 589372, 640491, 647094, 674926, 853988, 862792, 884058, 1012389, 1157016, 1178744, 1280982, 1294188, 1349852, 1494479, 1707976, 1768116, 2024778, 2561964, 2588376, 2699704, 2988958, 3536232, 4049556, 4483437, 5123928, 5977916, 8099112, 8966874, 10461353, 11955832, 17933748, 20922706, 31384059, 35867496, 41845412, 62768118, 83690824, 125536236, 251072472.
If you add them up, you will get the total of 772,208,640.