20161788820

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53057339}}^1$

素因数の和:53057367

約数の個数: 24

約数和(自身を含む): 44568165600

約数和(自身を除く): 24406376780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 53057339, 106114678, 212229356, 265286695, 530573390, 1008089441, 1061146780, 2016178882, 4032357764, 5040447205, 10080894410, 20161788820]

約数ペア:

[(1, 20161788820), (2, 10080894410), (4, 5040447205), (5, 4032357764), (10, 2016178882), (19, 1061146780), (20, 1008089441), (38, 530573390), (76, 265286695), (95, 212229356), (190, 106114678), (380, 53057339)]