123457540

素因数分解:

$2^2\times 5^1\times {\mathrm{1259}}^1\times {\mathrm{4903}}^1$

素因数の和:6171

約数の個数: 24

約数和(自身を含む): 259519680

約数和(自身を除く): 136062140

約数列:

[1, 2, 4, 5, 10, 20, 1259, 2518, 4903, 5036, 6295, 9806, 12590, 19612, 24515, 25180, 49030, 98060, 6172877, 12345754, 24691508, 30864385, 61728770, 123457540]

約数ペア:

[(1, 123457540), (2, 61728770), (4, 30864385), (5, 24691508), (10, 12345754), (20, 6172877), (1259, 98060), (2518, 49030), (4903, 25180), (5036, 24515), (6295, 19612), (9806, 12590)]