20198660

素因数分解:

$2^2\times 5^1\times {\mathrm{353}}^1\times {\mathrm{2861}}^1$

素因数の和:3223

約数の個数: 24

約数和(自身を含む): 42552216

約数和(自身を除く): 22353556

約数列:

[1, 2, 4, 5, 10, 20, 353, 706, 1412, 1765, 2861, 3530, 5722, 7060, 11444, 14305, 28610, 57220, 1009933, 2019866, 4039732, 5049665, 10099330, 20198660]

約数ペア:

[(1, 20198660), (2, 10099330), (4, 5049665), (5, 4039732), (10, 2019866), (20, 1009933), (353, 57220), (706, 28610), (1412, 14305), (1765, 11444), (2861, 7060), (3530, 5722)]