20131054820

素因数分解:

$2^2\times 5^1\times {\mathrm{2161}}^1\times {\mathrm{465781}}^1$

素因数の和:467951

約数の個数: 24

約数和(自身を含む): 42294868728

約数和(自身を除く): 22163813908

約数列:

[1, 2, 4, 5, 10, 20, 2161, 4322, 8644, 10805, 21610, 43220, 465781, 931562, 1863124, 2328905, 4657810, 9315620, 1006552741, 2013105482, 4026210964, 5032763705, 10065527410, 20131054820]

約数ペア:

[(1, 20131054820), (2, 10065527410), (4, 5032763705), (5, 4026210964), (10, 2013105482), (20, 1006552741), (2161, 9315620), (4322, 4657810), (8644, 2328905), (10805, 1863124), (21610, 931562), (43220, 465781)]