28435340

素因数分解:

$2^2\times 5^1\times {\mathrm{1103}}^1\times {\mathrm{1289}}^1$

素因数の和:2401

約数の個数: 24

約数和(自身を含む): 59814720

約数和(自身を除く): 31379380

約数列:

[1, 2, 4, 5, 10, 20, 1103, 1289, 2206, 2578, 4412, 5156, 5515, 6445, 11030, 12890, 22060, 25780, 1421767, 2843534, 5687068, 7108835, 14217670, 28435340]

約数ペア:

[(1, 28435340), (2, 14217670), (4, 7108835), (5, 5687068), (10, 2843534), (20, 1421767), (1103, 25780), (1289, 22060), (2206, 12890), (2578, 11030), (4412, 6445), (5156, 5515)]