342440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{1223}}^1$

素因数の和:1241

約数の個数: 32

約数和(自身を含む): 881280

約数和(自身を除く): 538840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 1223, 2446, 4892, 6115, 8561, 9784, 12230, 17122, 24460, 34244, 42805, 48920, 68488, 85610, 171220, 342440]

約数ペア:

[(1, 342440), (2, 171220), (4, 85610), (5, 68488), (7, 48920), (8, 42805), (10, 34244), (14, 24460), (20, 17122), (28, 12230), (35, 9784), (40, 8561), (56, 6115), (70, 4892), (140, 2446), (280, 1223)]