220142440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{786223}}^1$

素因数の和:786241

約数の個数: 32

約数和(自身を含む): 566081280

約数和(自身を除く): 345938840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 786223, 1572446, 3144892, 3931115, 5503561, 6289784, 7862230, 11007122, 15724460, 22014244, 27517805, 31448920, 44028488, 55035610, 110071220, 220142440]

約数ペア:

[(1, 220142440), (2, 110071220), (4, 55035610), (5, 44028488), (7, 31448920), (8, 27517805), (10, 22014244), (14, 15724460), (20, 11007122), (28, 7862230), (35, 6289784), (40, 5503561), (56, 3931115), (70, 3144892), (140, 1572446), (280, 786223)]