28265260

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{13721}}^1$

素因数の和:13833

約数の個数: 24

約数和(自身を含む): 59937696

約数和(自身を除く): 31672436

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 13721, 27442, 54884, 68605, 137210, 274420, 1413263, 2826526, 5653052, 7066315, 14132630, 28265260]

約数ペア:

[(1, 28265260), (2, 14132630), (4, 7066315), (5, 5653052), (10, 2826526), (20, 1413263), (103, 274420), (206, 137210), (412, 68605), (515, 54884), (1030, 27442), (2060, 13721)]