28164620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{128021}}^1$

素因数の和:128041

約数の個数: 24

約数和(自身を含む): 64523088

約数和(自身を除く): 36358468

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 128021, 256042, 512084, 640105, 1280210, 1408231, 2560420, 2816462, 5632924, 7041155, 14082310, 28164620]

約数ペア:

[(1, 28164620), (2, 14082310), (4, 7041155), (5, 5632924), (10, 2816462), (11, 2560420), (20, 1408231), (22, 1280210), (44, 640105), (55, 512084), (110, 256042), (220, 128021)]