661076660

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{320911}}^1$

素因数の和:321023

約数の個数: 24

約数和(自身を含む): 1401743616

約数和(自身を除く): 740666956

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 320911, 641822, 1283644, 1604555, 3209110, 6418220, 33053833, 66107666, 132215332, 165269165, 330538330, 661076660]

約数ペア:

[(1, 661076660), (2, 330538330), (4, 165269165), (5, 132215332), (10, 66107666), (20, 33053833), (103, 6418220), (206, 3209110), (412, 1604555), (515, 1283644), (1030, 641822), (2060, 320911)]