256467960

素因数分解:

$2^3\times 3^2\times 5^1\times 7^3\times {\mathrm{31}}^1\times {\mathrm{67}}^1$

素因数の和:136

約数の個数: 384

約数和(自身を含む): 1018368000

約数和(自身を除く): 761900040

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 31, 35, 36, 40, 42, 45, 49, 56, 60, 62, 63, 67, 70, 72, 84, 90, 93, 98, 105, 120, 124, 126, 134, 140, 147, 155, 168, 180, 186, 196, 201, 210, 217, 245, 248, 252, 268, 279, 280, 294, 310, 315, 335, 343, 360, 372, 392, 402, 420, 434, 441, 465, 469, 490, 504, 536, 558, 588, 603, 620, 630, 651, 670, 686, 735, 744, 804, 840, 868, 882, 930, 938, 980, 1005, 1029, 1085, 1116, 1176, 1206, 1240, 1260, 1302, 1340, 1372, 1395, 1407, 1470, 1519, 1608, 1715, 1736, 1764, 1860, 1876, 1953, 1960, 2010, 2058, 2077, 2170, 2205, 2232, 2345, 2412, 2520, 2604, 2680, 2744, 2790, 2814, 2940, 3015, 3038, 3087, 3255, 3283, 3430, 3528, 3720, 3752, 3906, 4020, 4116, 4154, 4221, 4340, 4410, 4557, 4690, 4824, 5145, 5208, 5580, 5628, 5880, 6030, 6076, 6174, 6231, 6510, 6566, 6860, 7035, 7595, 7812, 8040, 8232, 8308, 8442, 8680, 8820, 9114, 9380, 9765, 9849, 10290, 10385, 10633, 11160, 11256, 12060, 12152, 12348, 12462, 13020, 13132, 13671, 13720, 14070, 14539, 15190, 15435, 15624, 16415, 16616, 16884, 17640, 18228, 18693, 18760, 19530, 19698, 20580, 20770, 21105, 21266, 22785, 22981, 24120, 24696, 24924, 26040, 26264, 27342, 28140, 29078, 29547, 30380, 30870, 31155, 31899, 32830, 33768, 36456, 37386, 39060, 39396, 41160, 41540, 42210, 42532, 43617, 45570, 45962, 49245, 49848, 53165, 54684, 56280, 58156, 59094, 60760, 61740, 62310, 63798, 65660, 68355, 68943, 72695, 74772, 78120, 78792, 83080, 84420, 85064, 87234, 91140, 91924, 93465, 95697, 98490, 101773, 106330, 109368, 114905, 116312, 118188, 123480, 124620, 127596, 130851, 131320, 136710, 137886, 145390, 147735, 149544, 159495, 168840, 174468, 182280, 183848, 186930, 191394, 196980, 203546, 206829, 212660, 218085, 229810, 236376, 249240, 255192, 261702, 273420, 275772, 290780, 295470, 305319, 318990, 344715, 348936, 373860, 382788, 393960, 407092, 413658, 425320, 436170, 459620, 478485, 508865, 523404, 546840, 551544, 581560, 590940, 610638, 637980, 654255, 689430, 712411, 747720, 765576, 814184, 827316, 872340, 915957, 919240, 956970, 1017730, 1034145, 1046808, 1181880, 1221276, 1275960, 1308510, 1378860, 1424822, 1526595, 1654632, 1744680, 1831914, 1913940, 2035460, 2068290, 2137233, 2442552, 2617020, 2757720, 2849644, 3053190, 3562055, 3663828, 3827880, 4070920, 4136580, 4274466, 4579785, 5234040, 5699288, 6106380, 6411699, 7124110, 7327656, 8273160, 8548932, 9159570, 10686165, 12212760, 12823398, 14248220, 17097864, 18319140, 21372330, 25646796, 28496440, 32058495, 36638280, 42744660, 51293592, 64116990, 85489320, 128233980, 256467960]

約数ペア:

[(1, 256467960), (2, 128233980), (3, 85489320), (4, 64116990), (5, 51293592), (6, 42744660), (7, 36638280), (8, 32058495), (9, 28496440), (10, 25646796), (12, 21372330), (14, 18319140), (15, 17097864), (18, 14248220), (20, 12823398), (21, 12212760), (24, 10686165), (28, 9159570), (30, 8548932), (31, 8273160), (35, 7327656), (36, 7124110), (40, 6411699), (42, 6106380), (45, 5699288), (49, 5234040), (56, 4579785), (60, 4274466), (62, 4136580), (63, 4070920), (67, 3827880), (70, 3663828), (72, 3562055), (84, 3053190), (90, 2849644), (93, 2757720), (98, 2617020), (105, 2442552), (120, 2137233), (124, 2068290), (126, 2035460), (134, 1913940), (140, 1831914), (147, 1744680), (155, 1654632), (168, 1526595), (180, 1424822), (186, 1378860), (196, 1308510), (201, 1275960), (210, 1221276), (217, 1181880), (245, 1046808), (248, 1034145), (252, 1017730), (268, 956970), (279, 919240), (280, 915957), (294, 872340), (310, 827316), (315, 814184), (335, 765576), (343, 747720), (360, 712411), (372, 689430), (392, 654255), (402, 637980), (420, 610638), (434, 590940), (441, 581560), (465, 551544), (469, 546840), (490, 523404), (504, 508865), (536, 478485), (558, 459620), (588, 436170), (603, 425320), (620, 413658), (630, 407092), (651, 393960), (670, 382788), (686, 373860), (735, 348936), (744, 344715), (804, 318990), (840, 305319), (868, 295470), (882, 290780), (930, 275772), (938, 273420), (980, 261702), (1005, 255192), (1029, 249240), (1085, 236376), (1116, 229810), (1176, 218085), (1206, 212660), (1240, 206829), (1260, 203546), (1302, 196980), (1340, 191394), (1372, 186930), (1395, 183848), (1407, 182280), (1470, 174468), (1519, 168840), (1608, 159495), (1715, 149544), (1736, 147735), (1764, 145390), (1860, 137886), (1876, 136710), (1953, 131320), (1960, 130851), (2010, 127596), (2058, 124620), (2077, 123480), (2170, 118188), (2205, 116312), (2232, 114905), (2345, 109368), (2412, 106330), (2520, 101773), (2604, 98490), (2680, 95697), (2744, 93465), (2790, 91924), (2814, 91140), (2940, 87234), (3015, 85064), (3038, 84420), (3087, 83080), (3255, 78792), (3283, 78120), (3430, 74772), (3528, 72695), (3720, 68943), (3752, 68355), (3906, 65660), (4020, 63798), (4116, 62310), (4154, 61740), (4221, 60760), (4340, 59094), (4410, 58156), (4557, 56280), (4690, 54684), (4824, 53165), (5145, 49848), (5208, 49245), (5580, 45962), (5628, 45570), (5880, 43617), (6030, 42532), (6076, 42210), (6174, 41540), (6231, 41160), (6510, 39396), (6566, 39060), (6860, 37386), (7035, 36456), (7595, 33768), (7812, 32830), (8040, 31899), (8232, 31155), (8308, 30870), (8442, 30380), (8680, 29547), (8820, 29078), (9114, 28140), (9380, 27342), (9765, 26264), (9849, 26040), (10290, 24924), (10385, 24696), (10633, 24120), (11160, 22981), (11256, 22785), (12060, 21266), (12152, 21105), (12348, 20770), (12462, 20580), (13020, 19698), (13132, 19530), (13671, 18760), (13720, 18693), (14070, 18228), (14539, 17640), (15190, 16884), (15435, 16616), (15624, 16415)]