28857800

素因数分解:

$2^3\times 5^2\times {\mathrm{144289}}^1$

素因数の和:144305

約数の個数: 24

約数和(自身を含む): 67094850

約数和(自身を除く): 38237050

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 144289, 288578, 577156, 721445, 1154312, 1442890, 2885780, 3607225, 5771560, 7214450, 14428900, 28857800]

約数ペア:

[(1, 28857800), (2, 14428900), (4, 7214450), (5, 5771560), (8, 3607225), (10, 2885780), (20, 1442890), (25, 1154312), (40, 721445), (50, 577156), (100, 288578), (200, 144289)]