18380869160

素因数分解:

$2^3\times 5^1\times {\mathrm{459521729}}^1$

素因数の和:459521740

約数の個数: 16

約数和(自身を含む): 41356955700

約数和(自身を除く): 22976086540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 459521729, 919043458, 1838086916, 2297608645, 3676173832, 4595217290, 9190434580, 18380869160]

約数ペア:

[(1, 18380869160), (2, 9190434580), (4, 4595217290), (5, 3676173832), (8, 2297608645), (10, 1838086916), (20, 919043458), (40, 459521729)]