4890620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{193}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 11863488

約数和(自身を除く): 6972868

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 181, 193, 362, 386, 724, 772, 905, 965, 1267, 1351, 1810, 1930, 2534, 2702, 3620, 3860, 5068, 5404, 6335, 6755, 12670, 13510, 25340, 27020, 34933, 69866, 139732, 174665, 244531, 349330, 489062, 698660, 978124, 1222655, 2445310, 4890620]

約数ペア:

[(1, 4890620), (2, 2445310), (4, 1222655), (5, 978124), (7, 698660), (10, 489062), (14, 349330), (20, 244531), (28, 174665), (35, 139732), (70, 69866), (140, 34933), (181, 27020), (193, 25340), (362, 13510), (386, 12670), (724, 6755), (772, 6335), (905, 5404), (965, 5068), (1267, 3860), (1351, 3620), (1810, 2702), (1930, 2534)]