387719985

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{33181}}^1$

素因数の和:33249

約数の個数: 32

約数和(自身を含む): 668949120

約数和(自身を除く): 281229135

約数列:

[1, 3, 5, 15, 19, 41, 57, 95, 123, 205, 285, 615, 779, 2337, 3895, 11685, 33181, 99543, 165905, 497715, 630439, 1360421, 1891317, 3152195, 4081263, 6802105, 9456585, 20406315, 25847999, 77543997, 129239995, 387719985]

約数ペア:

[(1, 387719985), (3, 129239995), (5, 77543997), (15, 25847999), (19, 20406315), (41, 9456585), (57, 6802105), (95, 4081263), (123, 3152195), (205, 1891317), (285, 1360421), (615, 630439), (779, 497715), (2337, 165905), (3895, 99543), (11685, 33181)]