80420560

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{91387}}^1$

素因数の和:91411

約数の個数: 40

約数和(自身を含む): 203978016

約数和(自身を除く): 123557456

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 91387, 182774, 365548, 456935, 731096, 913870, 1005257, 1462192, 1827740, 2010514, 3655480, 4021028, 5026285, 7310960, 8042056, 10052570, 16084112, 20105140, 40210280, 80420560]

約数ペア:

[(1, 80420560), (2, 40210280), (4, 20105140), (5, 16084112), (8, 10052570), (10, 8042056), (11, 7310960), (16, 5026285), (20, 4021028), (22, 3655480), (40, 2010514), (44, 1827740), (55, 1462192), (80, 1005257), (88, 913870), (110, 731096), (176, 456935), (220, 365548), (440, 182774), (880, 91387)]