20008604

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{389}}^1$

素因数の和:578

約数の個数: 48

約数和(自身を含む): 44029440

約数和(自身を除く): 24020836

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 167, 308, 334, 389, 668, 778, 1169, 1556, 1837, 2338, 2723, 3674, 4279, 4676, 5446, 7348, 8558, 10892, 12859, 17116, 25718, 29953, 51436, 59906, 64963, 119812, 129926, 259852, 454741, 714593, 909482, 1429186, 1818964, 2858372, 5002151, 10004302, 20008604]

約数ペア:

[(1, 20008604), (2, 10004302), (4, 5002151), (7, 2858372), (11, 1818964), (14, 1429186), (22, 909482), (28, 714593), (44, 454741), (77, 259852), (154, 129926), (167, 119812), (308, 64963), (334, 59906), (389, 51436), (668, 29953), (778, 25718), (1169, 17116), (1556, 12859), (1837, 10892), (2338, 8558), (2723, 7348), (3674, 5446), (4279, 4676)]