12572440

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1223}}^1$

素因数の和:1491

約数の個数: 32

約数和(自身を含む): 28421280

約数和(自身を除く): 15848840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1223, 1285, 2056, 2446, 2570, 4892, 5140, 6115, 9784, 10280, 12230, 24460, 48920, 314311, 628622, 1257244, 1571555, 2514488, 3143110, 6286220, 12572440]

約数ペア:

[(1, 12572440), (2, 6286220), (4, 3143110), (5, 2514488), (8, 1571555), (10, 1257244), (20, 628622), (40, 314311), (257, 48920), (514, 24460), (1028, 12230), (1223, 10280), (1285, 9784), (2056, 6115), (2446, 5140), (2570, 4892)]