256268880

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{997}}^1$

素因数の和:1043

約数の個数: 320

約数和(自身を含む): 1069217280

約数和(自身を除く): 812948400

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, 34, 35, 36, 40, 42, 45, 48, 51, 54, 56, 60, 63, 68, 70, 72, 80, 84, 85, 90, 102, 105, 108, 112, 119, 120, 126, 135, 136, 140, 144, 153, 168, 170, 180, 189, 204, 210, 216, 238, 240, 252, 255, 270, 272, 280, 306, 315, 336, 340, 357, 360, 378, 408, 420, 432, 459, 476, 504, 510, 540, 560, 595, 612, 630, 680, 714, 720, 756, 765, 816, 840, 918, 945, 952, 997, 1008, 1020, 1071, 1080, 1190, 1224, 1260, 1360, 1428, 1512, 1530, 1680, 1785, 1836, 1890, 1904, 1994, 2040, 2142, 2160, 2295, 2380, 2448, 2520, 2856, 2991, 3024, 3060, 3213, 3570, 3672, 3780, 3988, 4080, 4284, 4590, 4760, 4985, 5040, 5355, 5712, 5982, 6120, 6426, 6979, 7140, 7344, 7560, 7976, 8568, 8973, 9180, 9520, 9970, 10710, 11964, 12240, 12852, 13958, 14280, 14955, 15120, 15952, 16065, 16949, 17136, 17946, 18360, 19940, 20937, 21420, 23928, 25704, 26919, 27916, 28560, 29910, 32130, 33898, 34895, 35892, 36720, 39880, 41874, 42840, 44865, 47856, 50847, 51408, 53838, 55832, 59820, 62811, 64260, 67796, 69790, 71784, 79760, 83748, 84745, 85680, 89730, 101694, 104685, 107676, 111664, 118643, 119640, 125622, 128520, 134595, 135592, 139580, 143568, 152541, 167496, 169490, 179460, 188433, 203388, 209370, 215352, 237286, 239280, 251244, 254235, 257040, 269190, 271184, 279160, 305082, 314055, 334992, 338980, 355929, 358920, 376866, 406776, 418740, 430704, 457623, 474572, 502488, 508470, 538380, 558320, 593215, 610164, 628110, 677960, 711858, 717840, 753732, 762705, 813552, 837480, 915246, 942165, 949144, 1004976, 1016940, 1067787, 1076760, 1186430, 1220328, 1256220, 1355920, 1423716, 1507464, 1525410, 1674960, 1779645, 1830492, 1884330, 1898288, 2033880, 2135574, 2153520, 2288115, 2372860, 2440656, 2512440, 2847432, 3014928, 3050820, 3203361, 3559290, 3660984, 3768660, 4067760, 4271148, 4576230, 4745720, 5024880, 5338935, 5694864, 6101640, 6406722, 7118580, 7321968, 7537320, 8542296, 9152460, 9491440, 10677870, 12203280, 12813444, 14237160, 15074640, 16016805, 17084592, 18304920, 21355740, 25626888, 28474320, 32033610, 36609840, 42711480, 51253776, 64067220, 85422960, 128134440, 256268880]

約数ペア:

[(1, 256268880), (2, 128134440), (3, 85422960), (4, 64067220), (5, 51253776), (6, 42711480), (7, 36609840), (8, 32033610), (9, 28474320), (10, 25626888), (12, 21355740), (14, 18304920), (15, 17084592), (16, 16016805), (17, 15074640), (18, 14237160), (20, 12813444), (21, 12203280), (24, 10677870), (27, 9491440), (28, 9152460), (30, 8542296), (34, 7537320), (35, 7321968), (36, 7118580), (40, 6406722), (42, 6101640), (45, 5694864), (48, 5338935), (51, 5024880), (54, 4745720), (56, 4576230), (60, 4271148), (63, 4067760), (68, 3768660), (70, 3660984), (72, 3559290), (80, 3203361), (84, 3050820), (85, 3014928), (90, 2847432), (102, 2512440), (105, 2440656), (108, 2372860), (112, 2288115), (119, 2153520), (120, 2135574), (126, 2033880), (135, 1898288), (136, 1884330), (140, 1830492), (144, 1779645), (153, 1674960), (168, 1525410), (170, 1507464), (180, 1423716), (189, 1355920), (204, 1256220), (210, 1220328), (216, 1186430), (238, 1076760), (240, 1067787), (252, 1016940), (255, 1004976), (270, 949144), (272, 942165), (280, 915246), (306, 837480), (315, 813552), (336, 762705), (340, 753732), (357, 717840), (360, 711858), (378, 677960), (408, 628110), (420, 610164), (432, 593215), (459, 558320), (476, 538380), (504, 508470), (510, 502488), (540, 474572), (560, 457623), (595, 430704), (612, 418740), (630, 406776), (680, 376866), (714, 358920), (720, 355929), (756, 338980), (765, 334992), (816, 314055), (840, 305082), (918, 279160), (945, 271184), (952, 269190), (997, 257040), (1008, 254235), (1020, 251244), (1071, 239280), (1080, 237286), (1190, 215352), (1224, 209370), (1260, 203388), (1360, 188433), (1428, 179460), (1512, 169490), (1530, 167496), (1680, 152541), (1785, 143568), (1836, 139580), (1890, 135592), (1904, 134595), (1994, 128520), (2040, 125622), (2142, 119640), (2160, 118643), (2295, 111664), (2380, 107676), (2448, 104685), (2520, 101694), (2856, 89730), (2991, 85680), (3024, 84745), (3060, 83748), (3213, 79760), (3570, 71784), (3672, 69790), (3780, 67796), (3988, 64260), (4080, 62811), (4284, 59820), (4590, 55832), (4760, 53838), (4985, 51408), (5040, 50847), (5355, 47856), (5712, 44865), (5982, 42840), (6120, 41874), (6426, 39880), (6979, 36720), (7140, 35892), (7344, 34895), (7560, 33898), (7976, 32130), (8568, 29910), (8973, 28560), (9180, 27916), (9520, 26919), (9970, 25704), (10710, 23928), (11964, 21420), (12240, 20937), (12852, 19940), (13958, 18360), (14280, 17946), (14955, 17136), (15120, 16949), (15952, 16065)]