256538907

素因数分解:

$3^4\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{317}}^1$

素因数の和:529

約数の個数: 40

約数和(自身を含む): 392167776

約数和(自身を除く): 135628869

約数列:

[1, 3, 9, 27, 81, 97, 103, 291, 309, 317, 873, 927, 951, 2619, 2781, 2853, 7857, 8343, 8559, 9991, 25677, 29973, 30749, 32651, 89919, 92247, 97953, 269757, 276741, 293859, 809271, 830223, 881577, 2490669, 2644731, 3167147, 9501441, 28504323, 85512969, 256538907]

約数ペア:

[(1, 256538907), (3, 85512969), (9, 28504323), (27, 9501441), (81, 3167147), (97, 2644731), (103, 2490669), (291, 881577), (309, 830223), (317, 809271), (873, 293859), (927, 276741), (951, 269757), (2619, 97953), (2781, 92247), (2853, 89919), (7857, 32651), (8343, 30749), (8559, 29973), (9991, 25677)]