1388577540

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{3306137}}^1$

素因数の和:3306156

約数の個数: 48

約数和(自身を含む): 4443449472

約数和(自身を除く): 3054871932

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 3306137, 6612274, 9918411, 13224548, 16530685, 19836822, 23142959, 33061370, 39673644, 46285918, 49592055, 66122740, 69428877, 92571836, 99184110, 115714795, 138857754, 198368220, 231429590, 277715508, 347144385, 462859180, 694288770, 1388577540]

約数ペア:

[(1, 1388577540), (2, 694288770), (3, 462859180), (4, 347144385), (5, 277715508), (6, 231429590), (7, 198368220), (10, 138857754), (12, 115714795), (14, 99184110), (15, 92571836), (20, 69428877), (21, 66122740), (28, 49592055), (30, 46285918), (35, 39673644), (42, 33061370), (60, 23142959), (70, 19836822), (84, 16530685), (105, 13224548), (140, 9918411), (210, 6612274), (420, 3306137)]