28117780

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{37997}}^1$

素因数の和:38043

約数の個数: 24

約数和(自身を含む): 60644808

約数和(自身を除く): 32527028

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 37997, 75994, 151988, 189985, 379970, 759940, 1405889, 2811778, 5623556, 7029445, 14058890, 28117780]

約数ペア:

[(1, 28117780), (2, 14058890), (4, 7029445), (5, 5623556), (10, 2811778), (20, 1405889), (37, 759940), (74, 379970), (148, 189985), (185, 151988), (370, 75994), (740, 37997)]