20386960

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23167}}^1$

素因数の和:23191

約数の個数: 40

約数和(自身を含む): 51710976

約数和(自身を除く): 31324016

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 23167, 46334, 92668, 115835, 185336, 231670, 254837, 370672, 463340, 509674, 926680, 1019348, 1274185, 1853360, 2038696, 2548370, 4077392, 5096740, 10193480, 20386960]

約数ペア:

[(1, 20386960), (2, 10193480), (4, 5096740), (5, 4077392), (8, 2548370), (10, 2038696), (11, 1853360), (16, 1274185), (20, 1019348), (22, 926680), (40, 509674), (44, 463340), (55, 370672), (80, 254837), (88, 231670), (110, 185336), (176, 115835), (220, 92668), (440, 46334), (880, 23167)]