20165991005

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{5517371}}^1$

素因数の和:5517436

約数の個数: 16

約数和(自身を含む): 26218551744

約数和(自身を除く): 6052560739

約数列:

[1, 5, 17, 43, 85, 215, 731, 3655, 5517371, 27586855, 93795307, 237246953, 468976535, 1186234765, 4033198201, 20165991005]

約数ペア:

[(1, 20165991005), (5, 4033198201), (17, 1186234765), (43, 468976535), (85, 237246953), (215, 93795307), (731, 27586855), (3655, 5517371)]