20161580

素因数分解:

$2^2\times 5^1\times {\mathrm{263}}^1\times {\mathrm{3833}}^1$

素因数の和:4105

約数の個数: 24

約数和(自身を含む): 42511392

約数和(自身を除く): 22349812

約数列:

[1, 2, 4, 5, 10, 20, 263, 526, 1052, 1315, 2630, 3833, 5260, 7666, 15332, 19165, 38330, 76660, 1008079, 2016158, 4032316, 5040395, 10080790, 20161580]

約数ペア:

[(1, 20161580), (2, 10080790), (4, 5040395), (5, 4032316), (10, 2016158), (20, 1008079), (263, 76660), (526, 38330), (1052, 19165), (1315, 15332), (2630, 7666), (3833, 5260)]