256531464

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:177

約数の個数: 288

約数和(自身を含む): 880308000

約数和(自身を除く): 623776536

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 19, 21, 24, 28, 36, 38, 42, 43, 49, 56, 57, 63, 72, 76, 84, 86, 89, 98, 114, 126, 129, 133, 147, 152, 168, 171, 172, 178, 196, 228, 252, 258, 266, 267, 294, 301, 342, 344, 356, 387, 392, 399, 441, 456, 504, 516, 532, 534, 588, 602, 623, 684, 712, 774, 798, 801, 817, 882, 903, 931, 1032, 1064, 1068, 1176, 1197, 1204, 1246, 1368, 1548, 1596, 1602, 1634, 1691, 1764, 1806, 1862, 1869, 2107, 2136, 2394, 2408, 2451, 2492, 2709, 2793, 3096, 3192, 3204, 3268, 3382, 3528, 3612, 3724, 3738, 3827, 4214, 4361, 4788, 4902, 4984, 5073, 5418, 5586, 5607, 5719, 6321, 6408, 6536, 6764, 7224, 7353, 7448, 7476, 7654, 8379, 8428, 8722, 9576, 9804, 10146, 10836, 11172, 11214, 11438, 11481, 11837, 12642, 13083, 13528, 14706, 14952, 15219, 15308, 16758, 16856, 17157, 17444, 18963, 19608, 20292, 21672, 22344, 22428, 22876, 22962, 23674, 25284, 26166, 26789, 29412, 30438, 30616, 33516, 34314, 34443, 34888, 35511, 37926, 39249, 40033, 40584, 44856, 45752, 45924, 47348, 50568, 51471, 52332, 53578, 58824, 60876, 67032, 68628, 68886, 71022, 72713, 75852, 78498, 80066, 80367, 82859, 91848, 94696, 102942, 104664, 106533, 107156, 120099, 121752, 137256, 137772, 142044, 145426, 151704, 156996, 160132, 160734, 165718, 187523, 205884, 213066, 214312, 218139, 240198, 241101, 248577, 275544, 284088, 290852, 313992, 320264, 321468, 331436, 360297, 375046, 411768, 426132, 436278, 480396, 482202, 497154, 508991, 562569, 581704, 642936, 654417, 662872, 720594, 745731, 750092, 852264, 872556, 960792, 964404, 994308, 1017982, 1125138, 1308834, 1441188, 1491462, 1500184, 1526973, 1687707, 1745112, 1928808, 1988616, 2035964, 2250276, 2617668, 2882376, 2982924, 3053946, 3375414, 3562937, 4071928, 4500552, 4580919, 5235336, 5965848, 6107892, 6750828, 7125874, 9161838, 10688811, 12215784, 13501656, 14251748, 18323676, 21377622, 28503496, 32066433, 36647352, 42755244, 64132866, 85510488, 128265732, 256531464]

約数ペア:

[(1, 256531464), (2, 128265732), (3, 85510488), (4, 64132866), (6, 42755244), (7, 36647352), (8, 32066433), (9, 28503496), (12, 21377622), (14, 18323676), (18, 14251748), (19, 13501656), (21, 12215784), (24, 10688811), (28, 9161838), (36, 7125874), (38, 6750828), (42, 6107892), (43, 5965848), (49, 5235336), (56, 4580919), (57, 4500552), (63, 4071928), (72, 3562937), (76, 3375414), (84, 3053946), (86, 2982924), (89, 2882376), (98, 2617668), (114, 2250276), (126, 2035964), (129, 1988616), (133, 1928808), (147, 1745112), (152, 1687707), (168, 1526973), (171, 1500184), (172, 1491462), (178, 1441188), (196, 1308834), (228, 1125138), (252, 1017982), (258, 994308), (266, 964404), (267, 960792), (294, 872556), (301, 852264), (342, 750092), (344, 745731), (356, 720594), (387, 662872), (392, 654417), (399, 642936), (441, 581704), (456, 562569), (504, 508991), (516, 497154), (532, 482202), (534, 480396), (588, 436278), (602, 426132), (623, 411768), (684, 375046), (712, 360297), (774, 331436), (798, 321468), (801, 320264), (817, 313992), (882, 290852), (903, 284088), (931, 275544), (1032, 248577), (1064, 241101), (1068, 240198), (1176, 218139), (1197, 214312), (1204, 213066), (1246, 205884), (1368, 187523), (1548, 165718), (1596, 160734), (1602, 160132), (1634, 156996), (1691, 151704), (1764, 145426), (1806, 142044), (1862, 137772), (1869, 137256), (2107, 121752), (2136, 120099), (2394, 107156), (2408, 106533), (2451, 104664), (2492, 102942), (2709, 94696), (2793, 91848), (3096, 82859), (3192, 80367), (3204, 80066), (3268, 78498), (3382, 75852), (3528, 72713), (3612, 71022), (3724, 68886), (3738, 68628), (3827, 67032), (4214, 60876), (4361, 58824), (4788, 53578), (4902, 52332), (4984, 51471), (5073, 50568), (5418, 47348), (5586, 45924), (5607, 45752), (5719, 44856), (6321, 40584), (6408, 40033), (6536, 39249), (6764, 37926), (7224, 35511), (7353, 34888), (7448, 34443), (7476, 34314), (7654, 33516), (8379, 30616), (8428, 30438), (8722, 29412), (9576, 26789), (9804, 26166), (10146, 25284), (10836, 23674), (11172, 22962), (11214, 22876), (11438, 22428), (11481, 22344), (11837, 21672), (12642, 20292), (13083, 19608), (13528, 18963), (14706, 17444), (14952, 17157), (15219, 16856), (15308, 16758)]