20391110

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{88657}}^1$

素因数の和:88687

約数の個数: 16

約数和(自身を含む): 38300256

約数和(自身を除く): 17909146

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 88657, 177314, 443285, 886570, 2039111, 4078222, 10195555, 20391110]

約数ペア:

[(1, 20391110), (2, 10195555), (5, 4078222), (10, 2039111), (23, 886570), (46, 443285), (115, 177314), (230, 88657)]