28340180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{128819}}^1$

素因数の和:128839

約数の個数: 24

約数和(自身を含む): 64925280

約数和(自身を除く): 36585100

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 128819, 257638, 515276, 644095, 1288190, 1417009, 2576380, 2834018, 5668036, 7085045, 14170090, 28340180]

約数ペア:

[(1, 28340180), (2, 14170090), (4, 7085045), (5, 5668036), (10, 2834018), (11, 2576380), (20, 1417009), (22, 1288190), (44, 644095), (55, 515276), (110, 257638), (220, 128819)]