42409820

素因数分解:

$2^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{10987}}^1$

素因数の和:11189

約数の個数: 24

約数和(自身を含む): 89530224

約数和(自身を除く): 47120404

約数列:

[1, 2, 4, 5, 10, 20, 193, 386, 772, 965, 1930, 3860, 10987, 21974, 43948, 54935, 109870, 219740, 2120491, 4240982, 8481964, 10602455, 21204910, 42409820]

約数ペア:

[(1, 42409820), (2, 21204910), (4, 10602455), (5, 8481964), (10, 4240982), (20, 2120491), (193, 219740), (386, 109870), (772, 54935), (965, 43948), (1930, 21974), (3860, 10987)]