646793920

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{577}}^1$

素因数の和:738

約数の個数: 112

約数和(自身を含む): 1606710528

約数和(自身を除く): 959916608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 113, 124, 155, 160, 226, 248, 310, 320, 452, 496, 565, 577, 620, 904, 992, 1130, 1154, 1240, 1808, 1984, 2260, 2308, 2480, 2885, 3503, 3616, 4520, 4616, 4960, 5770, 7006, 7232, 9040, 9232, 9920, 11540, 14012, 17515, 17887, 18080, 18464, 23080, 28024, 35030, 35774, 36160, 36928, 46160, 56048, 65201, 70060, 71548, 89435, 92320, 112096, 130402, 140120, 143096, 178870, 184640, 224192, 260804, 280240, 286192, 326005, 357740, 521608, 560480, 572384, 652010, 715480, 1043216, 1120960, 1144768, 1304020, 1430960, 2021231, 2086432, 2608040, 2861920, 4042462, 4172864, 5216080, 5723840, 8084924, 10106155, 10432160, 16169848, 20212310, 20864320, 32339696, 40424620, 64679392, 80849240, 129358784, 161698480, 323396960, 646793920]

約数ペア:

[(1, 646793920), (2, 323396960), (4, 161698480), (5, 129358784), (8, 80849240), (10, 64679392), (16, 40424620), (20, 32339696), (31, 20864320), (32, 20212310), (40, 16169848), (62, 10432160), (64, 10106155), (80, 8084924), (113, 5723840), (124, 5216080), (155, 4172864), (160, 4042462), (226, 2861920), (248, 2608040), (310, 2086432), (320, 2021231), (452, 1430960), (496, 1304020), (565, 1144768), (577, 1120960), (620, 1043216), (904, 715480), (992, 652010), (1130, 572384), (1154, 560480), (1240, 521608), (1808, 357740), (1984, 326005), (2260, 286192), (2308, 280240), (2480, 260804), (2885, 224192), (3503, 184640), (3616, 178870), (4520, 143096), (4616, 140120), (4960, 130402), (5770, 112096), (7006, 92320), (7232, 89435), (9040, 71548), (9232, 70060), (9920, 65201), (11540, 56048), (14012, 46160), (17515, 36928), (17887, 36160), (18080, 35774), (18464, 35030), (23080, 28024)]