27779780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{198427}}^1$

素因数の和:198443

約数の個数: 24

約数和(自身を含む): 66671808

約数和(自身を除く): 38892028

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 198427, 396854, 793708, 992135, 1388989, 1984270, 2777978, 3968540, 5555956, 6944945, 13889890, 27779780]

約数ペア:

[(1, 27779780), (2, 13889890), (4, 6944945), (5, 5555956), (7, 3968540), (10, 2777978), (14, 1984270), (20, 1388989), (28, 992135), (35, 793708), (70, 396854), (140, 198427)]