257459840

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{36571}}^1$

素因数の和:36601

約数の個数: 64

約数和(自身を含む): 671461920

約数和(自身を除く): 414002080

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 320, 352, 440, 640, 704, 880, 1408, 1760, 3520, 7040, 36571, 73142, 146284, 182855, 292568, 365710, 402281, 585136, 731420, 804562, 1170272, 1462840, 1609124, 2011405, 2340544, 2925680, 3218248, 4022810, 4681088, 5851360, 6436496, 8045620, 11702720, 12872992, 16091240, 23405440, 25745984, 32182480, 51491968, 64364960, 128729920, 257459840]

約数ペア:

[(1, 257459840), (2, 128729920), (4, 64364960), (5, 51491968), (8, 32182480), (10, 25745984), (11, 23405440), (16, 16091240), (20, 12872992), (22, 11702720), (32, 8045620), (40, 6436496), (44, 5851360), (55, 4681088), (64, 4022810), (80, 3218248), (88, 2925680), (110, 2340544), (128, 2011405), (160, 1609124), (176, 1462840), (220, 1170272), (320, 804562), (352, 731420), (440, 585136), (640, 402281), (704, 365710), (880, 292568), (1408, 182855), (1760, 146284), (3520, 73142), (7040, 36571)]