20177990180

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{21465947}}^1$

素因数の和:21466003

約数の個数: 24

約数和(自身を含む): 43275351168

約数和(自身を除く): 23097360988

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 21465947, 42931894, 85863788, 107329735, 214659470, 429318940, 1008899509, 2017799018, 4035598036, 5044497545, 10088995090, 20177990180]

約数ペア:

[(1, 20177990180), (2, 10088995090), (4, 5044497545), (5, 4035598036), (10, 2017799018), (20, 1008899509), (47, 429318940), (94, 214659470), (188, 107329735), (235, 85863788), (470, 42931894), (940, 21465947)]