1380320721

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{353}}^1\times {\mathrm{1759}}^1$

素因数の和:2150

約数の個数: 48

約数和(自身を含む): 2267865600

約数和(自身を除く): 887544879

約数列:

[1, 3, 9, 13, 19, 39, 57, 117, 171, 247, 353, 741, 1059, 1759, 2223, 3177, 4589, 5277, 6707, 13767, 15831, 20121, 22867, 33421, 41301, 60363, 68601, 87191, 100263, 205803, 261573, 300789, 434473, 620927, 784719, 1303419, 1862781, 3910257, 5588343, 8072051, 11797613, 24216153, 35392839, 72648459, 106178517, 153368969, 460106907, 1380320721]

約数ペア:

[(1, 1380320721), (3, 460106907), (9, 153368969), (13, 106178517), (19, 72648459), (39, 35392839), (57, 24216153), (117, 11797613), (171, 8072051), (247, 5588343), (353, 3910257), (741, 1862781), (1059, 1303419), (1759, 784719), (2223, 620927), (3177, 434473), (4589, 300789), (5277, 261573), (6707, 205803), (13767, 100263), (15831, 87191), (20121, 68601), (22867, 60363), (33421, 41301)]