12181820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{87013}}^1$

素因数の和:87029

約数の個数: 24

約数和(自身を含む): 29236704

約数和(自身を除く): 17054884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 87013, 174026, 348052, 435065, 609091, 870130, 1218182, 1740260, 2436364, 3045455, 6090910, 12181820]

約数ペア:

[(1, 12181820), (2, 6090910), (4, 3045455), (5, 2436364), (7, 1740260), (10, 1218182), (14, 870130), (20, 609091), (28, 435065), (35, 348052), (70, 174026), (140, 87013)]