28431400

素因数分解:

$2^3\times 5^2\times {\mathrm{142157}}^1$

素因数の和:142173

約数の個数: 24

約数和(自身を含む): 66103470

約数和(自身を除く): 37672070

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 142157, 284314, 568628, 710785, 1137256, 1421570, 2843140, 3553925, 5686280, 7107850, 14215700, 28431400]

約数ペア:

[(1, 28431400), (2, 14215700), (4, 7107850), (5, 5686280), (8, 3553925), (10, 2843140), (20, 1421570), (25, 1137256), (40, 710785), (50, 568628), (100, 284314), (200, 142157)]