278939752

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{431}}^1$

素因数の和:591

約数の個数: 96

約数和(自身を含む): 661893120

約数和(自身を除く): 382953368

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 91, 98, 104, 127, 182, 196, 254, 364, 392, 431, 508, 637, 728, 862, 889, 1016, 1274, 1651, 1724, 1778, 2548, 3017, 3302, 3448, 3556, 5096, 5603, 6034, 6223, 6604, 7112, 11206, 11557, 12068, 12446, 13208, 21119, 22412, 23114, 24136, 24892, 39221, 42238, 44824, 46228, 49784, 54737, 78442, 80899, 84476, 92456, 109474, 156884, 161798, 168952, 218948, 274547, 313768, 323596, 383159, 437896, 549094, 647192, 711581, 766318, 1098188, 1423162, 1532636, 2196376, 2682113, 2846324, 3065272, 4981067, 5364226, 5692648, 9962134, 10728452, 19924268, 21456904, 34867469, 39848536, 69734938, 139469876, 278939752]

約数ペア:

[(1, 278939752), (2, 139469876), (4, 69734938), (7, 39848536), (8, 34867469), (13, 21456904), (14, 19924268), (26, 10728452), (28, 9962134), (49, 5692648), (52, 5364226), (56, 4981067), (91, 3065272), (98, 2846324), (104, 2682113), (127, 2196376), (182, 1532636), (196, 1423162), (254, 1098188), (364, 766318), (392, 711581), (431, 647192), (508, 549094), (637, 437896), (728, 383159), (862, 323596), (889, 313768), (1016, 274547), (1274, 218948), (1651, 168952), (1724, 161798), (1778, 156884), (2548, 109474), (3017, 92456), (3302, 84476), (3448, 80899), (3556, 78442), (5096, 54737), (5603, 49784), (6034, 46228), (6223, 44824), (6604, 42238), (7112, 39221), (11206, 24892), (11557, 24136), (12068, 23114), (12446, 22412), (13208, 21119)]