68140180

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{38281}}^1$

素因数の和:38379

約数の個数: 24

約数和(自身を含む): 144705960

約数和(自身を除く): 76565780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 38281, 76562, 153124, 191405, 382810, 765620, 3407009, 6814018, 13628036, 17035045, 34070090, 68140180]

約数ペア:

[(1, 68140180), (2, 34070090), (4, 17035045), (5, 13628036), (10, 6814018), (20, 3407009), (89, 765620), (178, 382810), (356, 191405), (445, 153124), (890, 76562), (1780, 38281)]