28386620

素因数分解:

$2^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{5051}}^1$

素因数の和:5341

約数の個数: 24

約数和(自身を含む): 59835888

約数和(自身を除く): 31449268

約数列:

[1, 2, 4, 5, 10, 20, 281, 562, 1124, 1405, 2810, 5051, 5620, 10102, 20204, 25255, 50510, 101020, 1419331, 2838662, 5677324, 7096655, 14193310, 28386620]

約数ペア:

[(1, 28386620), (2, 14193310), (4, 7096655), (5, 5677324), (10, 2838662), (20, 1419331), (281, 101020), (562, 50510), (1124, 25255), (1405, 20204), (2810, 10102), (5051, 5620)]