20123408450

素因数分解:

$2^1\times 5^2\times {\mathrm{1409}}^1\times {\mathrm{285641}}^1$

素因数の和:287062

約数の個数: 24

約数和(自身を含む): 37456235460

約数和(自身を除く): 17332827010

約数列:

[1, 2, 5, 10, 25, 50, 1409, 2818, 7045, 14090, 35225, 70450, 285641, 571282, 1428205, 2856410, 7141025, 14282050, 402468169, 804936338, 2012340845, 4024681690, 10061704225, 20123408450]

約数ペア:

[(1, 20123408450), (2, 10061704225), (5, 4024681690), (10, 2012340845), (25, 804936338), (50, 402468169), (1409, 14282050), (2818, 7141025), (7045, 2856410), (14090, 1428205), (35225, 571282), (70450, 285641)]