20457550

素因数分解:

$2^1\times 5^2\times {\mathrm{101}}^1\times {\mathrm{4051}}^1$

素因数の和:4164

約数の個数: 24

約数和(自身を含む): 38437272

約数和(自身を除く): 17979722

約数列:

[1, 2, 5, 10, 25, 50, 101, 202, 505, 1010, 2525, 4051, 5050, 8102, 20255, 40510, 101275, 202550, 409151, 818302, 2045755, 4091510, 10228775, 20457550]

約数ペア:

[(1, 20457550), (2, 10228775), (5, 4091510), (10, 2045755), (25, 818302), (50, 409151), (101, 202550), (202, 101275), (505, 40510), (1010, 20255), (2525, 8102), (4051, 5050)]