155522020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{189661}}^1$

素因数の和:189711

約数の個数: 24

約数和(自身を含む): 334563768

約数和(自身を除く): 179041748

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 189661, 379322, 758644, 948305, 1896610, 3793220, 7776101, 15552202, 31104404, 38880505, 77761010, 155522020]

約数ペア:

[(1, 155522020), (2, 77761010), (4, 38880505), (5, 31104404), (10, 15552202), (20, 7776101), (41, 3793220), (82, 1896610), (164, 948305), (205, 758644), (410, 379322), (820, 189661)]