128789856

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{839}}^1$

素因数の和:909

約数の個数: 144

約数和(自身を含む): 404520480

約数和(自身を除く): 275730624

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 41, 48, 52, 72, 78, 82, 96, 104, 117, 123, 144, 156, 164, 208, 234, 246, 288, 312, 328, 369, 416, 468, 492, 533, 624, 656, 738, 839, 936, 984, 1066, 1248, 1312, 1476, 1599, 1678, 1872, 1968, 2132, 2517, 2952, 3198, 3356, 3744, 3936, 4264, 4797, 5034, 5904, 6396, 6712, 7551, 8528, 9594, 10068, 10907, 11808, 12792, 13424, 15102, 17056, 19188, 20136, 21814, 25584, 26848, 30204, 32721, 34399, 38376, 40272, 43628, 51168, 60408, 65442, 68798, 76752, 80544, 87256, 98163, 103197, 120816, 130884, 137596, 153504, 174512, 196326, 206394, 241632, 261768, 275192, 309591, 349024, 392652, 412788, 447187, 523536, 550384, 619182, 785304, 825576, 894374, 1047072, 1100768, 1238364, 1341561, 1570608, 1651152, 1788748, 2476728, 2683122, 3141216, 3302304, 3577496, 4024683, 4953456, 5366244, 7154992, 8049366, 9906912, 10732488, 14309984, 16098732, 21464976, 32197464, 42929952, 64394928, 128789856]

約数ペア:

[(1, 128789856), (2, 64394928), (3, 42929952), (4, 32197464), (6, 21464976), (8, 16098732), (9, 14309984), (12, 10732488), (13, 9906912), (16, 8049366), (18, 7154992), (24, 5366244), (26, 4953456), (32, 4024683), (36, 3577496), (39, 3302304), (41, 3141216), (48, 2683122), (52, 2476728), (72, 1788748), (78, 1651152), (82, 1570608), (96, 1341561), (104, 1238364), (117, 1100768), (123, 1047072), (144, 894374), (156, 825576), (164, 785304), (208, 619182), (234, 550384), (246, 523536), (288, 447187), (312, 412788), (328, 392652), (369, 349024), (416, 309591), (468, 275192), (492, 261768), (533, 241632), (624, 206394), (656, 196326), (738, 174512), (839, 153504), (936, 137596), (984, 130884), (1066, 120816), (1248, 103197), (1312, 98163), (1476, 87256), (1599, 80544), (1678, 76752), (1872, 68798), (1968, 65442), (2132, 60408), (2517, 51168), (2952, 43628), (3198, 40272), (3356, 38376), (3744, 34399), (3936, 32721), (4264, 30204), (4797, 26848), (5034, 25584), (5904, 21814), (6396, 20136), (6712, 19188), (7551, 17056), (8528, 15102), (9594, 13424), (10068, 12792), (10907, 11808)]