9781240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{193}}^1$

素因数の和:392

約数の個数: 64

約数和(自身を含む): 25421760

約数和(自身を除く): 15640520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 181, 193, 280, 362, 386, 724, 772, 905, 965, 1267, 1351, 1448, 1544, 1810, 1930, 2534, 2702, 3620, 3860, 5068, 5404, 6335, 6755, 7240, 7720, 10136, 10808, 12670, 13510, 25340, 27020, 34933, 50680, 54040, 69866, 139732, 174665, 244531, 279464, 349330, 489062, 698660, 978124, 1222655, 1397320, 1956248, 2445310, 4890620, 9781240]

約数ペア:

[(1, 9781240), (2, 4890620), (4, 2445310), (5, 1956248), (7, 1397320), (8, 1222655), (10, 978124), (14, 698660), (20, 489062), (28, 349330), (35, 279464), (40, 244531), (56, 174665), (70, 139732), (140, 69866), (181, 54040), (193, 50680), (280, 34933), (362, 27020), (386, 25340), (724, 13510), (772, 12670), (905, 10808), (965, 10136), (1267, 7720), (1351, 7240), (1448, 6755), (1544, 6335), (1810, 5404), (1930, 5068), (2534, 3860), (2702, 3620)]