20781024

素因数分解:

$2^5\times 3^1\times {\mathrm{11}}^2\times {\mathrm{1789}}^1$

素因数の和:1824

約数の個数: 72

約数和(自身を含む): 59993640

約数和(自身を除く): 39212616

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 22, 24, 32, 33, 44, 48, 66, 88, 96, 121, 132, 176, 242, 264, 352, 363, 484, 528, 726, 968, 1056, 1452, 1789, 1936, 2904, 3578, 3872, 5367, 5808, 7156, 10734, 11616, 14312, 19679, 21468, 28624, 39358, 42936, 57248, 59037, 78716, 85872, 118074, 157432, 171744, 216469, 236148, 314864, 432938, 472296, 629728, 649407, 865876, 944592, 1298814, 1731752, 1889184, 2597628, 3463504, 5195256, 6927008, 10390512, 20781024]

約数ペア:

[(1, 20781024), (2, 10390512), (3, 6927008), (4, 5195256), (6, 3463504), (8, 2597628), (11, 1889184), (12, 1731752), (16, 1298814), (22, 944592), (24, 865876), (32, 649407), (33, 629728), (44, 472296), (48, 432938), (66, 314864), (88, 236148), (96, 216469), (121, 171744), (132, 157432), (176, 118074), (242, 85872), (264, 78716), (352, 59037), (363, 57248), (484, 42936), (528, 39358), (726, 28624), (968, 21468), (1056, 19679), (1452, 14312), (1789, 11616), (1936, 10734), (2904, 7156), (3578, 5808), (3872, 5367)]