20163380

素因数分解:

$2^2\times 5^1\times {\mathrm{691}}^1\times {\mathrm{1459}}^1$

素因数の和:2159

約数の個数: 24

約数和(自身を含む): 42433440

約数和(自身を除く): 22270060

約数列:

[1, 2, 4, 5, 10, 20, 691, 1382, 1459, 2764, 2918, 3455, 5836, 6910, 7295, 13820, 14590, 29180, 1008169, 2016338, 4032676, 5040845, 10081690, 20163380]

約数ペア:

[(1, 20163380), (2, 10081690), (4, 5040845), (5, 4032676), (10, 2016338), (20, 1008169), (691, 29180), (1382, 14590), (1459, 13820), (2764, 7295), (2918, 6910), (3455, 5836)]