42196780

素因数分解:

$2^2\times 5^1\times {\mathrm{991}}^1\times {\mathrm{2129}}^1$

素因数の和:3129

約数の個数: 24

約数和(自身を含む): 88744320

約数和(自身を除く): 46547540

約数列:

[1, 2, 4, 5, 10, 20, 991, 1982, 2129, 3964, 4258, 4955, 8516, 9910, 10645, 19820, 21290, 42580, 2109839, 4219678, 8439356, 10549195, 21098390, 42196780]

約数ペア:

[(1, 42196780), (2, 21098390), (4, 10549195), (5, 8439356), (10, 4219678), (20, 2109839), (991, 42580), (1982, 21290), (2129, 19820), (3964, 10645), (4258, 9910), (4955, 8516)]