18485080

素因数分解:

$2^3\times 5^1\times {\mathrm{521}}^1\times {\mathrm{887}}^1$

素因数の和:1419

約数の個数: 32

約数和(自身を含む): 41718240

約数和(自身を除く): 23233160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521, 887, 1042, 1774, 2084, 2605, 3548, 4168, 4435, 5210, 7096, 8870, 10420, 17740, 20840, 35480, 462127, 924254, 1848508, 2310635, 3697016, 4621270, 9242540, 18485080]

約数ペア:

[(1, 18485080), (2, 9242540), (4, 4621270), (5, 3697016), (8, 2310635), (10, 1848508), (20, 924254), (40, 462127), (521, 35480), (887, 20840), (1042, 17740), (1774, 10420), (2084, 8870), (2605, 7096), (3548, 5210), (4168, 4435)]