81645080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{185557}}^1$

素因数の和:185579

約数の個数: 32

約数和(自身を含む): 200402640

約数和(自身を除く): 118757560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 185557, 371114, 742228, 927785, 1484456, 1855570, 2041127, 3711140, 4082254, 7422280, 8164508, 10205635, 16329016, 20411270, 40822540, 81645080]

約数ペア:

[(1, 81645080), (2, 40822540), (4, 20411270), (5, 16329016), (8, 10205635), (10, 8164508), (11, 7422280), (20, 4082254), (22, 3711140), (40, 2041127), (44, 1855570), (55, 1484456), (88, 927785), (110, 742228), (220, 371114), (440, 185557)]