18728060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72031}}^1$

素因数の和:72053

約数の個数: 24

約数和(自身を含む): 42354816

約数和(自身を除く): 23626756

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 72031, 144062, 288124, 360155, 720310, 936403, 1440620, 1872806, 3745612, 4682015, 9364030, 18728060]

約数ペア:

[(1, 18728060), (2, 9364030), (4, 4682015), (5, 3745612), (10, 1872806), (13, 1440620), (20, 936403), (26, 720310), (52, 360155), (65, 288124), (130, 144062), (260, 72031)]