81617820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{10711}}^1$

素因数の和:10850

約数の個数: 48

約数和(自身を含む): 230350848

約数和(自身を除く): 148733028

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 127, 254, 381, 508, 635, 762, 1270, 1524, 1905, 2540, 3810, 7620, 10711, 21422, 32133, 42844, 53555, 64266, 107110, 128532, 160665, 214220, 321330, 642660, 1360297, 2720594, 4080891, 5441188, 6801485, 8161782, 13602970, 16323564, 20404455, 27205940, 40808910, 81617820]

約数ペア:

[(1, 81617820), (2, 40808910), (3, 27205940), (4, 20404455), (5, 16323564), (6, 13602970), (10, 8161782), (12, 6801485), (15, 5441188), (20, 4080891), (30, 2720594), (60, 1360297), (127, 642660), (254, 321330), (381, 214220), (508, 160665), (635, 128532), (762, 107110), (1270, 64266), (1524, 53555), (1905, 42844), (2540, 32133), (3810, 21422), (7620, 10711)]