The factors of the number 525,541,536 are: 1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 17, 18, 23, 24, 26, 32, 34, 36, 39, 46, 48, 51, 52, 68, 69, 72, 78, 92, 96, 102, 104, 117, 136, 138, 144, 153, 156, 184, 204, 207, 208, 221, 234, 272, 276, 288, 299, 306, 312, 359, 368, 391, 408, 414, 416, 442, 468, 544, 552, 598, 612, 624, 663, 718, 736, 782, 816, 828, 884, 897, 936, 1077, 1104, 1173, 1196, 1224, 1248, 1326, 1436, 1564, 1632, 1656, 1768, 1794, 1872, 1989, 2154, 2208, 2346, 2392, 2448, 2652, 2691, 2872, 3128, 3231, 3312, 3519, 3536, 3588, 3744, 3978, 4308, 4667, 4692, 4784, 4896, 5083, 5304, 5382, 5744, 6103, 6256, 6462, 6624, 7038, 7072, 7176, 7956, 8257, 8616, 9334, 9384, 9568, 10166, 10608, 10764, 11488, 12206, 12512, 12924, 14001, 14076, 14352, 15249, 15912, 16514, 17232, 18309, 18668, 18768, 20332, 21216, 21528, 24412, 24771, 25848, 28002, 28152, 28704, 30498, 31824, 33028, 34464, 36618, 37336, 37536, 40664, 42003, 43056, 45747, 48824, 49542, 51696, 54927, 56004, 56304, 60996, 63648, 66056, 73236, 74313, 74672, 79339, 81328, 84006, 86112, 91494, 97648, 99084, 103392, 107341, 109854, 112008, 112608, 121992, 132112, 140369, 146472, 148626, 149344, 158678, 162656, 168012, 182988, 195296, 198168, 214682, 219708, 224016, 238017, 243984, 264224, 280738, 292944, 297252, 317356, 322023, 336024, 365976, 396336, 421107, 429364, 439416, 448032, 476034, 487968, 561476, 585888, 594504, 634712, 644046, 672048, 714051, 731952, 792672, 842214, 858728, 878832, 952068, 966069, 1122952, 1189008, 1263321, 1269424, 1288092, 1344096, 1428102, 1463904, 1684428, 1717456, 1757664, 1824797, 1904136, 1932138, 2245904, 2378016, 2526642, 2538848, 2576184, 2856204, 3368856, 3434912, 3649594, 3808272, 3864276, 4491808, 5053284, 5152368, 5474391, 5712408, 6737712, 7299188, 7616544, 7728552, 10106568, 10304736, 10948782, 11424816, 13475424, 14598376, 15457104, 16423173, 20213136, 21897564, 22849632, 29196752, 30914208, 32846346, 40426272, 43795128, 58393504, 65692692, 87590256, 131385384, 175180512, 262770768, 525541536.
If you add them up, you will get the total of 1,783,192,320.