20297020

素因数分解:

$2^2\times 5^1\times {\mathrm{241}}^1\times {\mathrm{4211}}^1$

素因数の和:4461

約数の個数: 24

約数和(自身を含む): 42810768

約数和(自身を除く): 22513748

約数列:

[1, 2, 4, 5, 10, 20, 241, 482, 964, 1205, 2410, 4211, 4820, 8422, 16844, 21055, 42110, 84220, 1014851, 2029702, 4059404, 5074255, 10148510, 20297020]

約数ペア:

[(1, 20297020), (2, 10148510), (4, 5074255), (5, 4059404), (10, 2029702), (20, 1014851), (241, 84220), (482, 42110), (964, 21055), (1205, 16844), (2410, 8422), (4211, 4820)]