205207808

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{313}}^1$

素因数の和:539

約数の個数: 72

約数和(自身を含む): 444778488

約数和(自身を除く): 239570680

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 197, 208, 256, 313, 394, 416, 626, 788, 832, 1252, 1576, 1664, 2504, 2561, 3152, 3328, 4069, 5008, 5122, 6304, 8138, 10016, 10244, 12608, 16276, 20032, 20488, 25216, 32552, 40064, 40976, 50432, 61661, 65104, 80128, 81952, 123322, 130208, 163904, 246644, 260416, 327808, 493288, 520832, 655616, 801593, 986576, 1041664, 1603186, 1973152, 3206372, 3946304, 6412744, 7892608, 12825488, 15785216, 25650976, 51301952, 102603904, 205207808]

約数ペア:

[(1, 205207808), (2, 102603904), (4, 51301952), (8, 25650976), (13, 15785216), (16, 12825488), (26, 7892608), (32, 6412744), (52, 3946304), (64, 3206372), (104, 1973152), (128, 1603186), (197, 1041664), (208, 986576), (256, 801593), (313, 655616), (394, 520832), (416, 493288), (626, 327808), (788, 260416), (832, 246644), (1252, 163904), (1576, 130208), (1664, 123322), (2504, 81952), (2561, 80128), (3152, 65104), (3328, 61661), (4069, 50432), (5008, 40976), (5122, 40064), (6304, 32552), (8138, 25216), (10016, 20488), (10244, 20032), (12608, 16276)]