18528140

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{15187}}^1$

素因数の和:15257

約数の個数: 24

約数和(自身を含む): 39549552

約数和(自身を除く): 21021412

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 15187, 30374, 60748, 75935, 151870, 303740, 926407, 1852814, 3705628, 4632035, 9264070, 18528140]

約数ペア:

[(1, 18528140), (2, 9264070), (4, 4632035), (5, 3705628), (10, 1852814), (20, 926407), (61, 303740), (122, 151870), (244, 75935), (305, 60748), (610, 30374), (1220, 15187)]