81991310

素因数分解:

$2^1\times 5^1\times {\mathrm{353}}^1\times {\mathrm{23227}}^1$

素因数の和:23587

約数の個数: 16

約数和(自身を含む): 148008816

約数和(自身を除く): 66017506

約数列:

[1, 2, 5, 10, 353, 706, 1765, 3530, 23227, 46454, 116135, 232270, 8199131, 16398262, 40995655, 81991310]

約数ペア:

[(1, 81991310), (2, 40995655), (5, 16398262), (10, 8199131), (353, 232270), (706, 116135), (1765, 46454), (3530, 23227)]