20407841290

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{439}}^1\times {\mathrm{244669}}^1$

素因数の和:245134

約数の個数: 32

約数和(自身を含む): 38755728000

約数和(自身を除く): 18347886710

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 439, 878, 2195, 4390, 8341, 16682, 41705, 83410, 244669, 489338, 1223345, 2446690, 4648711, 9297422, 23243555, 46487110, 107409691, 214819382, 537048455, 1074096910, 2040784129, 4081568258, 10203920645, 20407841290]

約数ペア:

[(1, 20407841290), (2, 10203920645), (5, 4081568258), (10, 2040784129), (19, 1074096910), (38, 537048455), (95, 214819382), (190, 107409691), (439, 46487110), (878, 23243555), (2195, 9297422), (4390, 4648711), (8341, 2446690), (16682, 1223345), (41705, 489338), (83410, 244669)]