257001472

素因数分解:

$2^{11}\times 7^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1$

素因数の和:246

約数の個数: 144

約数和(自身を含む): 647026380

約数和(自身を除く): 390024908

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 49, 52, 56, 64, 91, 98, 104, 112, 128, 182, 196, 197, 208, 224, 256, 364, 392, 394, 416, 448, 512, 637, 728, 784, 788, 832, 896, 1024, 1274, 1379, 1456, 1568, 1576, 1664, 1792, 2048, 2548, 2561, 2758, 2912, 3136, 3152, 3328, 3584, 5096, 5122, 5516, 5824, 6272, 6304, 6656, 7168, 9653, 10192, 10244, 11032, 11648, 12544, 12608, 13312, 14336, 17927, 19306, 20384, 20488, 22064, 23296, 25088, 25216, 26624, 35854, 38612, 40768, 40976, 44128, 46592, 50176, 50432, 71708, 77224, 81536, 81952, 88256, 93184, 100352, 100864, 125489, 143416, 154448, 163072, 163904, 176512, 186368, 201728, 250978, 286832, 308896, 326144, 327808, 353024, 403456, 501956, 573664, 617792, 652288, 655616, 706048, 1003912, 1147328, 1235584, 1304576, 1311232, 1412096, 2007824, 2294656, 2471168, 2622464, 2824192, 4015648, 4589312, 4942336, 5244928, 8031296, 9178624, 9884672, 16062592, 18357248, 19769344, 32125184, 36714496, 64250368, 128500736, 257001472]

約数ペア:

[(1, 257001472), (2, 128500736), (4, 64250368), (7, 36714496), (8, 32125184), (13, 19769344), (14, 18357248), (16, 16062592), (26, 9884672), (28, 9178624), (32, 8031296), (49, 5244928), (52, 4942336), (56, 4589312), (64, 4015648), (91, 2824192), (98, 2622464), (104, 2471168), (112, 2294656), (128, 2007824), (182, 1412096), (196, 1311232), (197, 1304576), (208, 1235584), (224, 1147328), (256, 1003912), (364, 706048), (392, 655616), (394, 652288), (416, 617792), (448, 573664), (512, 501956), (637, 403456), (728, 353024), (784, 327808), (788, 326144), (832, 308896), (896, 286832), (1024, 250978), (1274, 201728), (1379, 186368), (1456, 176512), (1568, 163904), (1576, 163072), (1664, 154448), (1792, 143416), (2048, 125489), (2548, 100864), (2561, 100352), (2758, 93184), (2912, 88256), (3136, 81952), (3152, 81536), (3328, 77224), (3584, 71708), (5096, 50432), (5122, 50176), (5516, 46592), (5824, 44128), (6272, 40976), (6304, 40768), (6656, 38612), (7168, 35854), (9653, 26624), (10192, 25216), (10244, 25088), (11032, 23296), (11648, 22064), (12544, 20488), (12608, 20384), (13312, 19306), (14336, 17927)]