128564315

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 178573248

約数和(自身を除く): 50008933

約数列:

[1, 5, 11, 41, 55, 71, 73, 121, 205, 355, 365, 451, 605, 781, 803, 2255, 2911, 2993, 3905, 4015, 4961, 5183, 8591, 8833, 14555, 14965, 24805, 25915, 32021, 32923, 42955, 44165, 57013, 160105, 164615, 212503, 285065, 352231, 362153, 627143, 1062515, 1761155, 1810765, 2337533, 3135715, 11687665, 25712863, 128564315]

約数ペア:

[(1, 128564315), (5, 25712863), (11, 11687665), (41, 3135715), (55, 2337533), (71, 1810765), (73, 1761155), (121, 1062515), (205, 627143), (355, 362153), (365, 352231), (451, 285065), (605, 212503), (781, 164615), (803, 160105), (2255, 57013), (2911, 44165), (2993, 42955), (3905, 32923), (4015, 32021), (4961, 25915), (5183, 24805), (8591, 14965), (8833, 14555)]