163993820

素因数分解:

$2^2\times 5^1\times {\mathrm{1231}}^1\times {\mathrm{6661}}^1$

素因数の和:7901

約数の個数: 24

約数和(自身を含む): 344718528

約数和(自身を除く): 180724708

約数列:

[1, 2, 4, 5, 10, 20, 1231, 2462, 4924, 6155, 6661, 12310, 13322, 24620, 26644, 33305, 66610, 133220, 8199691, 16399382, 32798764, 40998455, 81996910, 163993820]

約数ペア:

[(1, 163993820), (2, 81996910), (4, 40998455), (5, 32798764), (10, 16399382), (20, 8199691), (1231, 133220), (2462, 66610), (4924, 33305), (6155, 26644), (6661, 24620), (12310, 13322)]