20656040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{27179}}^1$

素因数の和:27209

約数の個数: 32

約数和(自身を含む): 48924000

約数和(自身を除く): 28267960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 27179, 54358, 108716, 135895, 217432, 271790, 516401, 543580, 1032802, 1087160, 2065604, 2582005, 4131208, 5164010, 10328020, 20656040]

約数ペア:

[(1, 20656040), (2, 10328020), (4, 5164010), (5, 4131208), (8, 2582005), (10, 2065604), (19, 1087160), (20, 1032802), (38, 543580), (40, 516401), (76, 271790), (95, 217432), (152, 135895), (190, 108716), (380, 54358), (760, 27179)]