78801080

素因数分解:

$2^3\times 5^1\times {\mathrm{887}}^1\times {\mathrm{2221}}^1$

素因数の和:3119

約数の個数: 32

約数和(自身を含む): 177582240

約数和(自身を除く): 98781160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 887, 1774, 2221, 3548, 4435, 4442, 7096, 8870, 8884, 11105, 17740, 17768, 22210, 35480, 44420, 88840, 1970027, 3940054, 7880108, 9850135, 15760216, 19700270, 39400540, 78801080]

約数ペア:

[(1, 78801080), (2, 39400540), (4, 19700270), (5, 15760216), (8, 9850135), (10, 7880108), (20, 3940054), (40, 1970027), (887, 88840), (1774, 44420), (2221, 35480), (3548, 22210), (4435, 17768), (4442, 17740), (7096, 11105), (8870, 8884)]