38587540

素因数分解:

$2^2\times 5^1\times {\mathrm{971}}^1\times {\mathrm{1987}}^1$

素因数の和:2967

約数の個数: 24

約数和(自身を含む): 81158112

約数和(自身を除く): 42570572

約数列:

[1, 2, 4, 5, 10, 20, 971, 1942, 1987, 3884, 3974, 4855, 7948, 9710, 9935, 19420, 19870, 39740, 1929377, 3858754, 7717508, 9646885, 19293770, 38587540]

約数ペア:

[(1, 38587540), (2, 19293770), (4, 9646885), (5, 7717508), (10, 3858754), (20, 1929377), (971, 39740), (1942, 19870), (1987, 19420), (3884, 9935), (3974, 9710), (4855, 7948)]