212197020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{505231}}^1$

素因数の和:505250

約数の個数: 48

約数和(自身を含む): 679031808

約数和(自身を除く): 466834788

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, 505231, 1010462, 1515693, 2020924, 2526155, 3031386, 3536617, 5052310, 6062772, 7073234, 7578465, 10104620, 10609851, 14146468, 15156930, 17683085, 21219702, 30313860, 35366170, 42439404, 53049255, 70732340, 106098510, 212197020]

約数ペア:

[(1, 212197020), (2, 106098510), (3, 70732340), (4, 53049255), (5, 42439404), (6, 35366170), (7, 30313860), (10, 21219702), (12, 17683085), (14, 15156930), (15, 14146468), (20, 10609851), (21, 10104620), (28, 7578465), (30, 7073234), (35, 6062772), (42, 5052310), (60, 3536617), (70, 3031386), (84, 2526155), (105, 2020924), (140, 1515693), (210, 1010462), (420, 505231)]