20326100

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:249

約数の個数: 72

約数和(自身を含む): 46976160

約数和(自身を除く): 26650060

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 43, 50, 58, 86, 100, 116, 145, 163, 172, 215, 290, 326, 430, 580, 652, 725, 815, 860, 1075, 1247, 1450, 1630, 2150, 2494, 2900, 3260, 4075, 4300, 4727, 4988, 6235, 7009, 8150, 9454, 12470, 14018, 16300, 18908, 23635, 24940, 28036, 31175, 35045, 47270, 62350, 70090, 94540, 118175, 124700, 140180, 175225, 203261, 236350, 350450, 406522, 472700, 700900, 813044, 1016305, 2032610, 4065220, 5081525, 10163050, 20326100]

約数ペア:

[(1, 20326100), (2, 10163050), (4, 5081525), (5, 4065220), (10, 2032610), (20, 1016305), (25, 813044), (29, 700900), (43, 472700), (50, 406522), (58, 350450), (86, 236350), (100, 203261), (116, 175225), (145, 140180), (163, 124700), (172, 118175), (215, 94540), (290, 70090), (326, 62350), (430, 47270), (580, 35045), (652, 31175), (725, 28036), (815, 24940), (860, 23635), (1075, 18908), (1247, 16300), (1450, 14018), (1630, 12470), (2150, 9454), (2494, 8150), (2900, 7009), (3260, 6235), (4075, 4988), (4300, 4727)]