281361285

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{1061}}^1$

素因数の和:1226

約数の個数: 48

約数和(自身を含む): 500992128

約数和(自身を除く): 219630843

約数列:

[1, 3, 5, 9, 15, 45, 71, 83, 213, 249, 355, 415, 639, 747, 1061, 1065, 1245, 3183, 3195, 3735, 5305, 5893, 9549, 15915, 17679, 29465, 47745, 53037, 75331, 88063, 88395, 225993, 264189, 265185, 376655, 440315, 677979, 792567, 1129965, 1320945, 3389895, 3962835, 6252473, 18757419, 31262365, 56272257, 93787095, 281361285]

約数ペア:

[(1, 281361285), (3, 93787095), (5, 56272257), (9, 31262365), (15, 18757419), (45, 6252473), (71, 3962835), (83, 3389895), (213, 1320945), (249, 1129965), (355, 792567), (415, 677979), (639, 440315), (747, 376655), (1061, 265185), (1065, 264189), (1245, 225993), (3183, 88395), (3195, 88063), (3735, 75331), (5305, 53037), (5893, 47745), (9549, 29465), (15915, 17679)]