18190220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47869}}^1$

素因数の和:47897

約数の個数: 24

約数和(自身を含む): 40210800

約数和(自身を除く): 22020580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 47869, 95738, 191476, 239345, 478690, 909511, 957380, 1819022, 3638044, 4547555, 9095110, 18190220]

約数ペア:

[(1, 18190220), (2, 9095110), (4, 4547555), (5, 3638044), (10, 1819022), (19, 957380), (20, 909511), (38, 478690), (76, 239345), (95, 191476), (190, 95738), (380, 47869)]