20928220

素因数分解:

$2^2\times 5^1\times {\mathrm{547}}^1\times {\mathrm{1913}}^1$

素因数の和:2469

約数の個数: 24

約数和(自身を含む): 44052624

約数和(自身を除く): 23124404

約数列:

[1, 2, 4, 5, 10, 20, 547, 1094, 1913, 2188, 2735, 3826, 5470, 7652, 9565, 10940, 19130, 38260, 1046411, 2092822, 4185644, 5232055, 10464110, 20928220]

約数ペア:

[(1, 20928220), (2, 10464110), (4, 5232055), (5, 4185644), (10, 2092822), (20, 1046411), (547, 38260), (1094, 19130), (1913, 10940), (2188, 9565), (2735, 7652), (3826, 5470)]