28568900

素因数分解:

$2^2\times 5^2\times {\mathrm{109}}^1\times {\mathrm{2621}}^1$

素因数の和:2744

約数の個数: 36

約数和(自身を含む): 62587140

約数和(自身を除く): 34018240

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 109, 218, 436, 545, 1090, 2180, 2621, 2725, 5242, 5450, 10484, 10900, 13105, 26210, 52420, 65525, 131050, 262100, 285689, 571378, 1142756, 1428445, 2856890, 5713780, 7142225, 14284450, 28568900]

約数ペア:

[(1, 28568900), (2, 14284450), (4, 7142225), (5, 5713780), (10, 2856890), (20, 1428445), (25, 1142756), (50, 571378), (100, 285689), (109, 262100), (218, 131050), (436, 65525), (545, 52420), (1090, 26210), (2180, 13105), (2621, 10900), (2725, 10484), (5242, 5450)]