208022020

素因数分解:

$2^2\times 5^1\times {\mathrm{2441}}^1\times {\mathrm{4261}}^1$

素因数の和:6711

約数の個数: 24

約数和(自身を含む): 437127768

約数和(自身を除く): 229105748

約数列:

[1, 2, 4, 5, 10, 20, 2441, 4261, 4882, 8522, 9764, 12205, 17044, 21305, 24410, 42610, 48820, 85220, 10401101, 20802202, 41604404, 52005505, 104011010, 208022020]

約数ペア:

[(1, 208022020), (2, 104011010), (4, 52005505), (5, 41604404), (10, 20802202), (20, 10401101), (2441, 85220), (4261, 48820), (4882, 42610), (8522, 24410), (9764, 21305), (12205, 17044)]