28208900

素因数分解:

$2^2\times 5^2\times {\mathrm{282089}}^1$

素因数の和:282103

約数の個数: 18

約数和(自身を含む): 61213530

約数和(自身を除く): 33004630

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 282089, 564178, 1128356, 1410445, 2820890, 5641780, 7052225, 14104450, 28208900]

約数ペア:

[(1, 28208900), (2, 14104450), (4, 7052225), (5, 5641780), (10, 2820890), (20, 1410445), (25, 1128356), (50, 564178), (100, 282089)]