256183746

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{149}}^1$

素因数の和:288

約数の個数: 128

約数和(自身を含む): 658022400

約数和(自身を除く): 401838654

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 47, 67, 78, 91, 94, 134, 141, 149, 182, 201, 273, 282, 298, 329, 402, 447, 469, 546, 611, 658, 871, 894, 938, 987, 1043, 1222, 1407, 1742, 1833, 1937, 1974, 2086, 2613, 2814, 3129, 3149, 3666, 3874, 4277, 5226, 5811, 6097, 6258, 6298, 7003, 8554, 9447, 9983, 11622, 12194, 12831, 13559, 14006, 18291, 18894, 19966, 21009, 22043, 25662, 27118, 29949, 36582, 40677, 40937, 42018, 44086, 49021, 59898, 66129, 69881, 81354, 81874, 91039, 98042, 122811, 129779, 132258, 139762, 147063, 182078, 209643, 245622, 259558, 273117, 286559, 294126, 389337, 419286, 469201, 546234, 573118, 637273, 778674, 859677, 908453, 938402, 1274546, 1407603, 1719354, 1816906, 1911819, 2725359, 2815206, 3284407, 3823638, 5450718, 6099613, 6568814, 9853221, 12199226, 18298839, 19706442, 36597678, 42697291, 85394582, 128091873, 256183746]

約数ペア:

[(1, 256183746), (2, 128091873), (3, 85394582), (6, 42697291), (7, 36597678), (13, 19706442), (14, 18298839), (21, 12199226), (26, 9853221), (39, 6568814), (42, 6099613), (47, 5450718), (67, 3823638), (78, 3284407), (91, 2815206), (94, 2725359), (134, 1911819), (141, 1816906), (149, 1719354), (182, 1407603), (201, 1274546), (273, 938402), (282, 908453), (298, 859677), (329, 778674), (402, 637273), (447, 573118), (469, 546234), (546, 469201), (611, 419286), (658, 389337), (871, 294126), (894, 286559), (938, 273117), (987, 259558), (1043, 245622), (1222, 209643), (1407, 182078), (1742, 147063), (1833, 139762), (1937, 132258), (1974, 129779), (2086, 122811), (2613, 98042), (2814, 91039), (3129, 81874), (3149, 81354), (3666, 69881), (3874, 66129), (4277, 59898), (5226, 49021), (5811, 44086), (6097, 42018), (6258, 40937), (6298, 40677), (7003, 36582), (8554, 29949), (9447, 27118), (9983, 25662), (11622, 22043), (12194, 21009), (12831, 19966), (13559, 18894), (14006, 18291)]