28002755

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^2\times {\mathrm{101}}^1$

素因数の和:259

約数の個数: 24

約数和(自身を含む): 37549872

約数和(自身を除く): 9547117

約数列:

[1, 5, 11, 55, 71, 101, 355, 505, 781, 1111, 3905, 5041, 5555, 7171, 25205, 35855, 55451, 78881, 277255, 394405, 509141, 2545705, 5600551, 28002755]

約数ペア:

[(1, 28002755), (5, 5600551), (11, 2545705), (55, 509141), (71, 394405), (101, 277255), (355, 78881), (505, 55451), (781, 35855), (1111, 25205), (3905, 7171), (5041, 5555)]