20168456

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1129}}^1$

素因数の和:1182

約数の個数: 64

約数和(自身を含む): 48816000

約数和(自身を除く): 28647544

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 29, 44, 56, 58, 77, 88, 116, 154, 203, 232, 308, 319, 406, 616, 638, 812, 1129, 1276, 1624, 2233, 2258, 2552, 4466, 4516, 7903, 8932, 9032, 12419, 15806, 17864, 24838, 31612, 32741, 49676, 63224, 65482, 86933, 99352, 130964, 173866, 229187, 261928, 347732, 360151, 458374, 695464, 720302, 916748, 1440604, 1833496, 2521057, 2881208, 5042114, 10084228, 20168456]

約数ペア:

[(1, 20168456), (2, 10084228), (4, 5042114), (7, 2881208), (8, 2521057), (11, 1833496), (14, 1440604), (22, 916748), (28, 720302), (29, 695464), (44, 458374), (56, 360151), (58, 347732), (77, 261928), (88, 229187), (116, 173866), (154, 130964), (203, 99352), (232, 86933), (308, 65482), (319, 63224), (406, 49676), (616, 32741), (638, 31612), (812, 24838), (1129, 17864), (1276, 15806), (1624, 12419), (2233, 9032), (2258, 8932), (2552, 7903), (4466, 4516)]