27788740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{198491}}^1$

素因数の和:198507

約数の個数: 24

約数和(自身を含む): 66693312

約数和(自身を除く): 38904572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 198491, 396982, 793964, 992455, 1389437, 1984910, 2778874, 3969820, 5557748, 6947185, 13894370, 27788740]

約数ペア:

[(1, 27788740), (2, 13894370), (4, 6947185), (5, 5557748), (7, 3969820), (10, 2778874), (14, 1984910), (20, 1389437), (28, 992455), (35, 793964), (70, 396982), (140, 198491)]