20172145

素因数分解:

$5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{3671}}^1$

素因数の和:3840

約数の個数: 16

約数和(自身を含む): 27848448

約数和(自身を除く): 7676303

約数列:

[1, 5, 7, 35, 157, 785, 1099, 3671, 5495, 18355, 25697, 128485, 576347, 2881735, 4034429, 20172145]

約数ペア:

[(1, 20172145), (5, 4034429), (7, 2881735), (35, 576347), (157, 128485), (785, 25697), (1099, 18355), (3671, 5495)]