20165742020

素因数分解:

$2^2\times 5^1\times {\mathrm{1583}}^1\times {\mathrm{636947}}^1$

素因数の和:638539

約数の個数: 24

約数和(自身を含む): 42374876544

約数和(自身を除く): 22209134524

約数列:

[1, 2, 4, 5, 10, 20, 1583, 3166, 6332, 7915, 15830, 31660, 636947, 1273894, 2547788, 3184735, 6369470, 12738940, 1008287101, 2016574202, 4033148404, 5041435505, 10082871010, 20165742020]

約数ペア:

[(1, 20165742020), (2, 10082871010), (4, 5041435505), (5, 4033148404), (10, 2016574202), (20, 1008287101), (1583, 12738940), (3166, 6369470), (6332, 3184735), (7915, 2547788), (15830, 1273894), (31660, 636947)]