199866460

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{20353}}^1$

素因数の和:20853

約数の個数: 24

約数和(自身を含む): 420595056

約数和(自身を除く): 220728596

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 2455, 4910, 9820, 20353, 40706, 81412, 101765, 203530, 407060, 9993323, 19986646, 39973292, 49966615, 99933230, 199866460]

約数ペア:

[(1, 199866460), (2, 99933230), (4, 49966615), (5, 39973292), (10, 19986646), (20, 9993323), (491, 407060), (982, 203530), (1964, 101765), (2455, 81412), (4910, 40706), (9820, 20353)]