199428640

素因数分解:

$2^5\times 5^1\times {\mathrm{1246429}}^1$

素因数の和:1246444

約数の個数: 24

約数和(自身を含む): 471150540

約数和(自身を除く): 271721900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1246429, 2492858, 4985716, 6232145, 9971432, 12464290, 19942864, 24928580, 39885728, 49857160, 99714320, 199428640]

約数ペア:

[(1, 199428640), (2, 99714320), (4, 49857160), (5, 39885728), (8, 24928580), (10, 19942864), (16, 12464290), (20, 9971432), (32, 6232145), (40, 4985716), (80, 2492858), (160, 1246429)]