81425080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{185057}}^1$

素因数の和:185079

約数の個数: 32

約数和(自身を含む): 199862640

約数和(自身を除く): 118437560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 185057, 370114, 740228, 925285, 1480456, 1850570, 2035627, 3701140, 4071254, 7402280, 8142508, 10178135, 16285016, 20356270, 40712540, 81425080]

約数ペア:

[(1, 81425080), (2, 40712540), (4, 20356270), (5, 16285016), (8, 10178135), (10, 8142508), (11, 7402280), (20, 4071254), (22, 3701140), (40, 2035627), (44, 1850570), (55, 1480456), (88, 925285), (110, 740228), (220, 370114), (440, 185057)]