20353640

素因数分解:

$2^3\times 5^1\times {\mathrm{508841}}^1$

素因数の和:508852

約数の個数: 16

約数和(自身を含む): 45795780

約数和(自身を除く): 25442140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 508841, 1017682, 2035364, 2544205, 4070728, 5088410, 10176820, 20353640]

約数ペア:

[(1, 20353640), (2, 10176820), (4, 5088410), (5, 4070728), (8, 2544205), (10, 2035364), (20, 1017682), (40, 508841)]