20308728

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1789}}^1$

素因数の和:1852

約数の個数: 64

約数和(自身を含む): 56707200

約数和(自身を除く): 36398472

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 43, 44, 66, 86, 88, 129, 132, 172, 258, 264, 344, 473, 516, 946, 1032, 1419, 1789, 1892, 2838, 3578, 3784, 5367, 5676, 7156, 10734, 11352, 14312, 19679, 21468, 39358, 42936, 59037, 76927, 78716, 118074, 153854, 157432, 230781, 236148, 307708, 461562, 472296, 615416, 846197, 923124, 1692394, 1846248, 2538591, 3384788, 5077182, 6769576, 10154364, 20308728]

約数ペア:

[(1, 20308728), (2, 10154364), (3, 6769576), (4, 5077182), (6, 3384788), (8, 2538591), (11, 1846248), (12, 1692394), (22, 923124), (24, 846197), (33, 615416), (43, 472296), (44, 461562), (66, 307708), (86, 236148), (88, 230781), (129, 157432), (132, 153854), (172, 118074), (258, 78716), (264, 76927), (344, 59037), (473, 42936), (516, 39358), (946, 21468), (1032, 19679), (1419, 14312), (1789, 11352), (1892, 10734), (2838, 7156), (3578, 5676), (3784, 5367)]