19963040

素因数分解:

$2^5\times 5^1\times {\mathrm{124769}}^1$

素因数の和:124784

約数の個数: 24

約数和(自身を含む): 47163060

約数和(自身を除く): 27200020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 124769, 249538, 499076, 623845, 998152, 1247690, 1996304, 2495380, 3992608, 4990760, 9981520, 19963040]

約数ペア:

[(1, 19963040), (2, 9981520), (4, 4990760), (5, 3992608), (8, 2495380), (10, 1996304), (16, 1247690), (20, 998152), (32, 623845), (40, 499076), (80, 249538), (160, 124769)]