128945265

素因数分解:

$3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{211}}^1\times {\mathrm{311}}^1$

素因数の和:661

約数の個数: 32

約数和(自身を含む): 209544192

約数和(自身を除く): 80598927

約数列:

[1, 3, 5, 15, 131, 211, 311, 393, 633, 655, 933, 1055, 1555, 1965, 3165, 4665, 27641, 40741, 65621, 82923, 122223, 138205, 196863, 203705, 328105, 414615, 611115, 984315, 8596351, 25789053, 42981755, 128945265]

約数ペア:

[(1, 128945265), (3, 42981755), (5, 25789053), (15, 8596351), (131, 984315), (211, 611115), (311, 414615), (393, 328105), (633, 203705), (655, 196863), (933, 138205), (1055, 122223), (1555, 82923), (1965, 65621), (3165, 40741), (4665, 27641)]