199348640

素因数分解:

$2^5\times 5^1\times {\mathrm{1245929}}^1$

素因数の和:1245944

約数の個数: 24

約数和(自身を含む): 470961540

約数和(自身を除く): 271612900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1245929, 2491858, 4983716, 6229645, 9967432, 12459290, 19934864, 24918580, 39869728, 49837160, 99674320, 199348640]

約数ペア:

[(1, 199348640), (2, 99674320), (4, 49837160), (5, 39869728), (8, 24918580), (10, 19934864), (16, 12459290), (20, 9967432), (32, 6229645), (40, 4983716), (80, 2491858), (160, 1245929)]