201991100

素因数分解:

$2^2\times 5^2\times {\mathrm{2019911}}^1$

素因数の和:2019925

約数の個数: 18

約数和(自身を含む): 438320904

約数和(自身を除く): 236329804

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 2019911, 4039822, 8079644, 10099555, 20199110, 40398220, 50497775, 100995550, 201991100]

約数ペア:

[(1, 201991100), (2, 100995550), (4, 50497775), (5, 40398220), (10, 20199110), (20, 10099555), (25, 8079644), (50, 4039822), (100, 2019911)]