27979140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{66617}}^1$

素因数の和:66636

約数の個数: 48

約数和(自身を含む): 89534592

約数和(自身を除く): 61555452

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, 66617, 133234, 199851, 266468, 333085, 399702, 466319, 666170, 799404, 932638, 999255, 1332340, 1398957, 1865276, 1998510, 2331595, 2797914, 3997020, 4663190, 5595828, 6994785, 9326380, 13989570, 27979140]

約数ペア:

[(1, 27979140), (2, 13989570), (3, 9326380), (4, 6994785), (5, 5595828), (6, 4663190), (7, 3997020), (10, 2797914), (12, 2331595), (14, 1998510), (15, 1865276), (20, 1398957), (21, 1332340), (28, 999255), (30, 932638), (35, 799404), (42, 666170), (60, 466319), (70, 399702), (84, 333085), (105, 266468), (140, 199851), (210, 133234), (420, 66617)]