20128085

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{5507}}^1$

素因数の和:5572

約数の個数: 16

約数和(自身を含む): 26174016

約数和(自身を除く): 6045931

約数列:

[1, 5, 17, 43, 85, 215, 731, 3655, 5507, 27535, 93619, 236801, 468095, 1184005, 4025617, 20128085]

約数ペア:

[(1, 20128085), (5, 4025617), (17, 1184005), (43, 468095), (85, 236801), (215, 93619), (731, 27535), (3655, 5507)]