The factors of the number 251,377,368 are: 1, 2, 3, 4, 6, 8, 11, 12, 17, 22, 24, 33, 34, 44, 51, 66, 68, 79, 88, 102, 132, 136, 158, 187, 204, 237, 264, 316, 374, 408, 474, 561, 632, 709, 748, 869, 948, 1122, 1343, 1418, 1496, 1738, 1896, 2127, 2244, 2607, 2686, 2836, 3476, 4029, 4254, 4488, 5214, 5372, 5672, 6952, 7799, 8058, 8508, 10428, 10744, 12053, 14773, 15598, 16116, 17016, 20856, 23397, 24106, 29546, 31196, 32232, 36159, 44319, 46794, 48212, 56011, 59092, 62392, 72318, 88638, 93588, 96424, 112022, 118184, 132583, 144636, 168033, 177276, 187176, 224044, 265166, 289272, 336066, 354552, 397749, 448088, 530332, 616121, 672132, 795498, 952187, 1060664, 1232242, 1344264, 1590996, 1848363, 1904374, 2464484, 2856561, 3181992, 3696726, 3808748, 4928968, 5713122, 7393452, 7617496, 10474057, 11426244, 14786904, 20948114, 22852488, 31422171, 41896228, 62844342, 83792456, 125688684, 251377368.
If you add them up, you will get the total of 736,128,000.