78817284

素因数分解:

$2^2\times 3^2\times 7^3\times {\mathrm{13}}^1\times {\mathrm{491}}^1$

素因数の和:535

約数の個数: 144

約数和(自身を含む): 250723200

約数和(自身を除く): 171905916

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 28, 36, 39, 42, 49, 52, 63, 78, 84, 91, 98, 117, 126, 147, 156, 182, 196, 234, 252, 273, 294, 343, 364, 441, 468, 491, 546, 588, 637, 686, 819, 882, 982, 1029, 1092, 1274, 1372, 1473, 1638, 1764, 1911, 1964, 2058, 2548, 2946, 3087, 3276, 3437, 3822, 4116, 4419, 4459, 5733, 5892, 6174, 6383, 6874, 7644, 8838, 8918, 10311, 11466, 12348, 12766, 13377, 13748, 17676, 17836, 19149, 20622, 22932, 24059, 25532, 26754, 30933, 38298, 40131, 41244, 44681, 48118, 53508, 57447, 61866, 72177, 76596, 80262, 89362, 96236, 114894, 123732, 134043, 144354, 160524, 168413, 178724, 216531, 229788, 268086, 288708, 312767, 336826, 402129, 433062, 505239, 536172, 625534, 673652, 804258, 866124, 938301, 1010478, 1251068, 1515717, 1608516, 1876602, 2020956, 2189369, 2814903, 3031434, 3753204, 4378738, 5629806, 6062868, 6568107, 8757476, 11259612, 13136214, 19704321, 26272428, 39408642, 78817284]

約数ペア:

[(1, 78817284), (2, 39408642), (3, 26272428), (4, 19704321), (6, 13136214), (7, 11259612), (9, 8757476), (12, 6568107), (13, 6062868), (14, 5629806), (18, 4378738), (21, 3753204), (26, 3031434), (28, 2814903), (36, 2189369), (39, 2020956), (42, 1876602), (49, 1608516), (52, 1515717), (63, 1251068), (78, 1010478), (84, 938301), (91, 866124), (98, 804258), (117, 673652), (126, 625534), (147, 536172), (156, 505239), (182, 433062), (196, 402129), (234, 336826), (252, 312767), (273, 288708), (294, 268086), (343, 229788), (364, 216531), (441, 178724), (468, 168413), (491, 160524), (546, 144354), (588, 134043), (637, 123732), (686, 114894), (819, 96236), (882, 89362), (982, 80262), (1029, 76596), (1092, 72177), (1274, 61866), (1372, 57447), (1473, 53508), (1638, 48118), (1764, 44681), (1911, 41244), (1964, 40131), (2058, 38298), (2548, 30933), (2946, 26754), (3087, 25532), (3276, 24059), (3437, 22932), (3822, 20622), (4116, 19149), (4419, 17836), (4459, 17676), (5733, 13748), (5892, 13377), (6174, 12766), (6383, 12348), (6874, 11466), (7644, 10311), (8838, 8918)]