18725080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{42557}}^1$

素因数の和:42579

約数の個数: 32

約数和(自身を含む): 45962640

約数和(自身を除く): 27237560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 42557, 85114, 170228, 212785, 340456, 425570, 468127, 851140, 936254, 1702280, 1872508, 2340635, 3745016, 4681270, 9362540, 18725080]

約数ペア:

[(1, 18725080), (2, 9362540), (4, 4681270), (5, 3745016), (8, 2340635), (10, 1872508), (11, 1702280), (20, 936254), (22, 851140), (40, 468127), (44, 425570), (55, 340456), (88, 212785), (110, 170228), (220, 85114), (440, 42557)]