19504540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{88657}}^1$

素因数の和:88677

約数の個数: 24

約数和(自身を含む): 44683632

約数和(自身を除く): 25179092

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 88657, 177314, 354628, 443285, 886570, 975227, 1773140, 1950454, 3900908, 4876135, 9752270, 19504540]

約数ペア:

[(1, 19504540), (2, 9752270), (4, 4876135), (5, 3900908), (10, 1950454), (11, 1773140), (20, 975227), (22, 886570), (44, 443285), (55, 354628), (110, 177314), (220, 88657)]