19905670

素因数分解:

$2^1\times 5^1\times {\mathrm{353}}^1\times {\mathrm{5639}}^1$

素因数の和:5999

約数の個数: 16

約数和(自身を含む): 35938080

約数和(自身を除く): 16032410

約数列:

[1, 2, 5, 10, 353, 706, 1765, 3530, 5639, 11278, 28195, 56390, 1990567, 3981134, 9952835, 19905670]

約数ペア:

[(1, 19905670), (2, 9952835), (5, 3981134), (10, 1990567), (353, 56390), (706, 28195), (1765, 11278), (3530, 5639)]