20196181820

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{10410403}}^1$

素因数の和:10410509

約数の個数: 24

約数和(自身を含む): 42849222864

約数和(自身を除く): 22653041044

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 10410403, 20820806, 41641612, 52052015, 104104030, 208208060, 1009809091, 2019618182, 4039236364, 5049045455, 10098090910, 20196181820]

約数ペア:

[(1, 20196181820), (2, 10098090910), (4, 5049045455), (5, 4039236364), (10, 2019618182), (20, 1009809091), (97, 208208060), (194, 104104030), (388, 52052015), (485, 41641612), (970, 20820806), (1940, 10410403)]