9018820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{10487}}^1$

素因数の和:10539

約数の個数: 24

約数和(自身を含む): 19381824

約数和(自身を除く): 10363004

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 10487, 20974, 41948, 52435, 104870, 209740, 450941, 901882, 1803764, 2254705, 4509410, 9018820]

約数ペア:

[(1, 9018820), (2, 4509410), (4, 2254705), (5, 1803764), (10, 901882), (20, 450941), (43, 209740), (86, 104870), (172, 52435), (215, 41948), (430, 20974), (860, 10487)]