21726800

素因数分解:

$2^4\times 5^2\times {\mathrm{29}}^1\times {\mathrm{1873}}^1$

素因数の和:1920

約数の個数: 60

約数和(自身を含む): 54027420

約数和(自身を除く): 32300620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 40, 50, 58, 80, 100, 116, 145, 200, 232, 290, 400, 464, 580, 725, 1160, 1450, 1873, 2320, 2900, 3746, 5800, 7492, 9365, 11600, 14984, 18730, 29968, 37460, 46825, 54317, 74920, 93650, 108634, 149840, 187300, 217268, 271585, 374600, 434536, 543170, 749200, 869072, 1086340, 1357925, 2172680, 2715850, 4345360, 5431700, 10863400, 21726800]

約数ペア:

[(1, 21726800), (2, 10863400), (4, 5431700), (5, 4345360), (8, 2715850), (10, 2172680), (16, 1357925), (20, 1086340), (25, 869072), (29, 749200), (40, 543170), (50, 434536), (58, 374600), (80, 271585), (100, 217268), (116, 187300), (145, 149840), (200, 108634), (232, 93650), (290, 74920), (400, 54317), (464, 46825), (580, 37460), (725, 29968), (1160, 18730), (1450, 14984), (1873, 11600), (2320, 9365), (2900, 7492), (3746, 5800)]