256525920

素因数分解:

$2^5\times 3^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{499}}^1$

素因数の和:547

約数の個数: 384

約数和(自身を含む): 1088640000

約数和(自身を除く): 832114080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 17, 18, 20, 21, 24, 27, 28, 30, 32, 34, 35, 36, 40, 42, 45, 48, 51, 54, 56, 60, 63, 68, 70, 72, 80, 84, 85, 90, 96, 102, 105, 108, 112, 119, 120, 126, 135, 136, 140, 144, 153, 160, 168, 170, 180, 189, 204, 210, 216, 224, 238, 240, 252, 255, 270, 272, 280, 288, 306, 315, 336, 340, 357, 360, 378, 408, 420, 432, 459, 476, 480, 499, 504, 510, 540, 544, 560, 595, 612, 630, 672, 680, 714, 720, 756, 765, 816, 840, 864, 918, 945, 952, 998, 1008, 1020, 1071, 1080, 1120, 1190, 1224, 1260, 1360, 1428, 1440, 1497, 1512, 1530, 1632, 1680, 1785, 1836, 1890, 1904, 1996, 2016, 2040, 2142, 2160, 2295, 2380, 2448, 2495, 2520, 2720, 2856, 2994, 3024, 3060, 3213, 3360, 3493, 3570, 3672, 3780, 3808, 3992, 4080, 4284, 4320, 4491, 4590, 4760, 4896, 4990, 5040, 5355, 5712, 5988, 6048, 6120, 6426, 6986, 7140, 7344, 7485, 7560, 7984, 8160, 8483, 8568, 8982, 9180, 9520, 9980, 10080, 10479, 10710, 11424, 11976, 12240, 12852, 13473, 13972, 14280, 14688, 14970, 15120, 15968, 16065, 16966, 17136, 17465, 17964, 18360, 19040, 19960, 20958, 21420, 22455, 23952, 24480, 25449, 25704, 26946, 27944, 28560, 29940, 30240, 31437, 32130, 33932, 34272, 34930, 35928, 36720, 39920, 41916, 42415, 42840, 44910, 47904, 50898, 51408, 52395, 53892, 55888, 57120, 59381, 59880, 62874, 64260, 67365, 67864, 69860, 71856, 73440, 76347, 79840, 83832, 84830, 85680, 89820, 94311, 101796, 102816, 104790, 107784, 111776, 118762, 119760, 125748, 127245, 128520, 134730, 135728, 139720, 143712, 152694, 157185, 167664, 169660, 171360, 178143, 179640, 188622, 203592, 209580, 215568, 229041, 237524, 239520, 251496, 254490, 257040, 269460, 271456, 279440, 296905, 305388, 314370, 335328, 339320, 356286, 359280, 377244, 381735, 407184, 419160, 431136, 458082, 471555, 475048, 502992, 508980, 514080, 534429, 538920, 558880, 593810, 610776, 628740, 678640, 712572, 718560, 754488, 763470, 814368, 838320, 890715, 916164, 943110, 950096, 1005984, 1017960, 1068858, 1077840, 1145205, 1187620, 1221552, 1257480, 1357280, 1425144, 1508976, 1526940, 1603287, 1676640, 1781430, 1832328, 1886220, 1900192, 2035920, 2137716, 2155680, 2290410, 2375240, 2443104, 2514960, 2672145, 2850288, 3017952, 3053880, 3206574, 3562860, 3664656, 3772440, 4071840, 4275432, 4580820, 4750480, 5029920, 5344290, 5700576, 6107760, 6413148, 7125720, 7329312, 7544880, 8016435, 8550864, 9161640, 9500960, 10688580, 12215520, 12826296, 14251440, 15089760, 16032870, 17101728, 18323280, 21377160, 25652592, 28502880, 32065740, 36646560, 42754320, 51305184, 64131480, 85508640, 128262960, 256525920]

約数ペア:

[(1, 256525920), (2, 128262960), (3, 85508640), (4, 64131480), (5, 51305184), (6, 42754320), (7, 36646560), (8, 32065740), (9, 28502880), (10, 25652592), (12, 21377160), (14, 18323280), (15, 17101728), (16, 16032870), (17, 15089760), (18, 14251440), (20, 12826296), (21, 12215520), (24, 10688580), (27, 9500960), (28, 9161640), (30, 8550864), (32, 8016435), (34, 7544880), (35, 7329312), (36, 7125720), (40, 6413148), (42, 6107760), (45, 5700576), (48, 5344290), (51, 5029920), (54, 4750480), (56, 4580820), (60, 4275432), (63, 4071840), (68, 3772440), (70, 3664656), (72, 3562860), (80, 3206574), (84, 3053880), (85, 3017952), (90, 2850288), (96, 2672145), (102, 2514960), (105, 2443104), (108, 2375240), (112, 2290410), (119, 2155680), (120, 2137716), (126, 2035920), (135, 1900192), (136, 1886220), (140, 1832328), (144, 1781430), (153, 1676640), (160, 1603287), (168, 1526940), (170, 1508976), (180, 1425144), (189, 1357280), (204, 1257480), (210, 1221552), (216, 1187620), (224, 1145205), (238, 1077840), (240, 1068858), (252, 1017960), (255, 1005984), (270, 950096), (272, 943110), (280, 916164), (288, 890715), (306, 838320), (315, 814368), (336, 763470), (340, 754488), (357, 718560), (360, 712572), (378, 678640), (408, 628740), (420, 610776), (432, 593810), (459, 558880), (476, 538920), (480, 534429), (499, 514080), (504, 508980), (510, 502992), (540, 475048), (544, 471555), (560, 458082), (595, 431136), (612, 419160), (630, 407184), (672, 381735), (680, 377244), (714, 359280), (720, 356286), (756, 339320), (765, 335328), (816, 314370), (840, 305388), (864, 296905), (918, 279440), (945, 271456), (952, 269460), (998, 257040), (1008, 254490), (1020, 251496), (1071, 239520), (1080, 237524), (1120, 229041), (1190, 215568), (1224, 209580), (1260, 203592), (1360, 188622), (1428, 179640), (1440, 178143), (1497, 171360), (1512, 169660), (1530, 167664), (1632, 157185), (1680, 152694), (1785, 143712), (1836, 139720), (1890, 135728), (1904, 134730), (1996, 128520), (2016, 127245), (2040, 125748), (2142, 119760), (2160, 118762), (2295, 111776), (2380, 107784), (2448, 104790), (2495, 102816), (2520, 101796), (2720, 94311), (2856, 89820), (2994, 85680), (3024, 84830), (3060, 83832), (3213, 79840), (3360, 76347), (3493, 73440), (3570, 71856), (3672, 69860), (3780, 67864), (3808, 67365), (3992, 64260), (4080, 62874), (4284, 59880), (4320, 59381), (4491, 57120), (4590, 55888), (4760, 53892), (4896, 52395), (4990, 51408), (5040, 50898), (5355, 47904), (5712, 44910), (5988, 42840), (6048, 42415), (6120, 41916), (6426, 39920), (6986, 36720), (7140, 35928), (7344, 34930), (7485, 34272), (7560, 33932), (7984, 32130), (8160, 31437), (8483, 30240), (8568, 29940), (8982, 28560), (9180, 27944), (9520, 26946), (9980, 25704), (10080, 25449), (10479, 24480), (10710, 23952), (11424, 22455), (11976, 21420), (12240, 20958), (12852, 19960), (13473, 19040), (13972, 18360), (14280, 17964), (14688, 17465), (14970, 17136), (15120, 16966), (15968, 16065)]