20298220

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{10463}}^1$

素因数の和:10569

約数の個数: 24

約数和(自身を含む): 43069824

約数和(自身を除く): 22771604

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 10463, 20926, 41852, 52315, 104630, 209260, 1014911, 2029822, 4059644, 5074555, 10149110, 20298220]

約数ペア:

[(1, 20298220), (2, 10149110), (4, 5074555), (5, 4059644), (10, 2029822), (20, 1014911), (97, 209260), (194, 104630), (388, 52315), (485, 41852), (970, 20926), (1940, 10463)]