331481392

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{647}}^1$

素因数の和:778

約数の個数: 80

約数和(自身を含む): 728953344

約数和(自身を除く): 397471952

約数列:

[1, 2, 4, 8, 11, 16, 22, 41, 44, 71, 82, 88, 142, 164, 176, 284, 328, 451, 568, 647, 656, 781, 902, 1136, 1294, 1562, 1804, 2588, 2911, 3124, 3608, 5176, 5822, 6248, 7117, 7216, 10352, 11644, 12496, 14234, 23288, 26527, 28468, 32021, 45937, 46576, 53054, 56936, 64042, 91874, 106108, 113872, 128084, 183748, 212216, 256168, 291797, 367496, 424432, 505307, 512336, 583594, 734992, 1010614, 1167188, 1883417, 2021228, 2334376, 3766834, 4042456, 4668752, 7533668, 8084912, 15067336, 20717587, 30134672, 41435174, 82870348, 165740696, 331481392]

約数ペア:

[(1, 331481392), (2, 165740696), (4, 82870348), (8, 41435174), (11, 30134672), (16, 20717587), (22, 15067336), (41, 8084912), (44, 7533668), (71, 4668752), (82, 4042456), (88, 3766834), (142, 2334376), (164, 2021228), (176, 1883417), (284, 1167188), (328, 1010614), (451, 734992), (568, 583594), (647, 512336), (656, 505307), (781, 424432), (902, 367496), (1136, 291797), (1294, 256168), (1562, 212216), (1804, 183748), (2588, 128084), (2911, 113872), (3124, 106108), (3608, 91874), (5176, 64042), (5822, 56936), (6248, 53054), (7117, 46576), (7216, 45937), (10352, 32021), (11644, 28468), (12496, 26527), (14234, 23288)]