20176643984

素因数分解:

$2^4\times 7^1\times {\mathrm{631}}^1\times {\mathrm{285497}}^1$

素因数の和:286143

約数の個数: 40

約数和(自身を含む): 44747814528

約数和(自身を除く): 24571170544

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 631, 1262, 2524, 4417, 5048, 8834, 10096, 17668, 35336, 70672, 285497, 570994, 1141988, 1998479, 2283976, 3996958, 4567952, 7993916, 15987832, 31975664, 180148607, 360297214, 720594428, 1261040249, 1441188856, 2522080498, 2882377712, 5044160996, 10088321992, 20176643984]

約数ペア:

[(1, 20176643984), (2, 10088321992), (4, 5044160996), (7, 2882377712), (8, 2522080498), (14, 1441188856), (16, 1261040249), (28, 720594428), (56, 360297214), (112, 180148607), (631, 31975664), (1262, 15987832), (2524, 7993916), (4417, 4567952), (5048, 3996958), (8834, 2283976), (10096, 1998479), (17668, 1141988), (35336, 570994), (70672, 285497)]