20886460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{773}}^1$

素因数の和:982

約数の個数: 48

約数和(自身を含む): 50452416

約数和(自身を除く): 29565956

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 193, 386, 772, 773, 965, 1351, 1546, 1930, 2702, 3092, 3860, 3865, 5404, 5411, 6755, 7730, 10822, 13510, 15460, 21644, 27020, 27055, 54110, 108220, 149189, 298378, 596756, 745945, 1044323, 1491890, 2088646, 2983780, 4177292, 5221615, 10443230, 20886460]

約数ペア:

[(1, 20886460), (2, 10443230), (4, 5221615), (5, 4177292), (7, 2983780), (10, 2088646), (14, 1491890), (20, 1044323), (28, 745945), (35, 596756), (70, 298378), (140, 149189), (193, 108220), (386, 54110), (772, 27055), (773, 27020), (965, 21644), (1351, 15460), (1546, 13510), (1930, 10822), (2702, 7730), (3092, 6755), (3860, 5411), (3865, 5404)]