20190280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{45887}}^1$

素因数の和:45909

約数の個数: 32

約数和(自身を含む): 49559040

約数和(自身を除く): 29368760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 45887, 91774, 183548, 229435, 367096, 458870, 504757, 917740, 1009514, 1835480, 2019028, 2523785, 4038056, 5047570, 10095140, 20190280]

約数ペア:

[(1, 20190280), (2, 10095140), (4, 5047570), (5, 4038056), (8, 2523785), (10, 2019028), (11, 1835480), (20, 1009514), (22, 917740), (40, 504757), (44, 458870), (55, 367096), (88, 229435), (110, 183548), (220, 91774), (440, 45887)]