256858560

素因数分解:

$2^6\times 3^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:201

約数の個数: 448

約数和(自身を含む): 1076797440

約数和(自身を除く): 819938880

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 31, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 62, 63, 64, 70, 72, 80, 84, 90, 93, 96, 105, 108, 112, 120, 124, 126, 135, 137, 140, 144, 155, 160, 168, 180, 186, 189, 192, 210, 216, 217, 224, 240, 248, 252, 270, 274, 279, 280, 288, 310, 315, 320, 336, 360, 372, 378, 411, 420, 432, 434, 448, 465, 480, 496, 504, 540, 548, 558, 560, 576, 620, 630, 651, 672, 685, 720, 744, 756, 822, 837, 840, 864, 868, 930, 945, 959, 960, 992, 1008, 1080, 1085, 1096, 1116, 1120, 1233, 1240, 1260, 1302, 1344, 1370, 1395, 1440, 1488, 1512, 1644, 1674, 1680, 1728, 1736, 1860, 1890, 1918, 1953, 1984, 2016, 2055, 2160, 2170, 2192, 2232, 2240, 2466, 2480, 2520, 2604, 2740, 2790, 2877, 2880, 2976, 3024, 3255, 3288, 3348, 3360, 3472, 3699, 3720, 3780, 3836, 3906, 4032, 4110, 4185, 4247, 4320, 4340, 4384, 4464, 4795, 4932, 4960, 5040, 5208, 5480, 5580, 5754, 5859, 5952, 6048, 6165, 6510, 6576, 6696, 6720, 6944, 7398, 7440, 7560, 7672, 7812, 8220, 8370, 8494, 8631, 8640, 8680, 8768, 8928, 9590, 9765, 9864, 9920, 10080, 10416, 10960, 11160, 11508, 11718, 12096, 12330, 12741, 13020, 13152, 13392, 13888, 14385, 14796, 14880, 15120, 15344, 15624, 16440, 16740, 16988, 17262, 17360, 17856, 18495, 19180, 19530, 19728, 20160, 20832, 21235, 21920, 22320, 23016, 23436, 24660, 25482, 25893, 26040, 26304, 26784, 28770, 29295, 29592, 29729, 29760, 30240, 30688, 31248, 32880, 33480, 33976, 34524, 34720, 36990, 38223, 38360, 39060, 39456, 41664, 42470, 43155, 43840, 44640, 46032, 46872, 49320, 50964, 51786, 52080, 53568, 57540, 58590, 59184, 59458, 60480, 61376, 62496, 63705, 65760, 66960, 67952, 69048, 69440, 73980, 76446, 76720, 78120, 78912, 84940, 86310, 89187, 89280, 92064, 93744, 98640, 101928, 103572, 104160, 114669, 115080, 117180, 118368, 118916, 124992, 127410, 129465, 131520, 133920, 135904, 138096, 147960, 148645, 152892, 153440, 156240, 169880, 172620, 178374, 184128, 187488, 191115, 197280, 203856, 207144, 208320, 229338, 230160, 234360, 236736, 237832, 254820, 258930, 267561, 267840, 271808, 276192, 295920, 297290, 305784, 306880, 312480, 339760, 345240, 356748, 374976, 382230, 394560, 407712, 414288, 445935, 458676, 460320, 468720, 475664, 509640, 517860, 535122, 552384, 573345, 591840, 594580, 611568, 624960, 679520, 690480, 713496, 764460, 802683, 815424, 828576, 891870, 917352, 920640, 937440, 951328, 1019280, 1035720, 1070244, 1146690, 1183680, 1189160, 1223136, 1337805, 1359040, 1380960, 1426992, 1528920, 1605366, 1657152, 1783740, 1834704, 1874880, 1902656, 2038560, 2071440, 2140488, 2293380, 2378320, 2446272, 2675610, 2761920, 2853984, 3057840, 3210732, 3567480, 3669408, 4013415, 4077120, 4142880, 4280976, 4586760, 4756640, 5351220, 5707968, 6115680, 6421464, 7134960, 7338816, 8026830, 8285760, 8561952, 9173520, 9513280, 10702440, 12231360, 12842928, 14269920, 16053660, 17123904, 18347040, 21404880, 25685856, 28539840, 32107320, 36694080, 42809760, 51371712, 64214640, 85619520, 128429280, 256858560]

約数ペア:

[(1, 256858560), (2, 128429280), (3, 85619520), (4, 64214640), (5, 51371712), (6, 42809760), (7, 36694080), (8, 32107320), (9, 28539840), (10, 25685856), (12, 21404880), (14, 18347040), (15, 17123904), (16, 16053660), (18, 14269920), (20, 12842928), (21, 12231360), (24, 10702440), (27, 9513280), (28, 9173520), (30, 8561952), (31, 8285760), (32, 8026830), (35, 7338816), (36, 7134960), (40, 6421464), (42, 6115680), (45, 5707968), (48, 5351220), (54, 4756640), (56, 4586760), (60, 4280976), (62, 4142880), (63, 4077120), (64, 4013415), (70, 3669408), (72, 3567480), (80, 3210732), (84, 3057840), (90, 2853984), (93, 2761920), (96, 2675610), (105, 2446272), (108, 2378320), (112, 2293380), (120, 2140488), (124, 2071440), (126, 2038560), (135, 1902656), (137, 1874880), (140, 1834704), (144, 1783740), (155, 1657152), (160, 1605366), (168, 1528920), (180, 1426992), (186, 1380960), (189, 1359040), (192, 1337805), (210, 1223136), (216, 1189160), (217, 1183680), (224, 1146690), (240, 1070244), (248, 1035720), (252, 1019280), (270, 951328), (274, 937440), (279, 920640), (280, 917352), (288, 891870), (310, 828576), (315, 815424), (320, 802683), (336, 764460), (360, 713496), (372, 690480), (378, 679520), (411, 624960), (420, 611568), (432, 594580), (434, 591840), (448, 573345), (465, 552384), (480, 535122), (496, 517860), (504, 509640), (540, 475664), (548, 468720), (558, 460320), (560, 458676), (576, 445935), (620, 414288), (630, 407712), (651, 394560), (672, 382230), (685, 374976), (720, 356748), (744, 345240), (756, 339760), (822, 312480), (837, 306880), (840, 305784), (864, 297290), (868, 295920), (930, 276192), (945, 271808), (959, 267840), (960, 267561), (992, 258930), (1008, 254820), (1080, 237832), (1085, 236736), (1096, 234360), (1116, 230160), (1120, 229338), (1233, 208320), (1240, 207144), (1260, 203856), (1302, 197280), (1344, 191115), (1370, 187488), (1395, 184128), (1440, 178374), (1488, 172620), (1512, 169880), (1644, 156240), (1674, 153440), (1680, 152892), (1728, 148645), (1736, 147960), (1860, 138096), (1890, 135904), (1918, 133920), (1953, 131520), (1984, 129465), (2016, 127410), (2055, 124992), (2160, 118916), (2170, 118368), (2192, 117180), (2232, 115080), (2240, 114669), (2466, 104160), (2480, 103572), (2520, 101928), (2604, 98640), (2740, 93744), (2790, 92064), (2877, 89280), (2880, 89187), (2976, 86310), (3024, 84940), (3255, 78912), (3288, 78120), (3348, 76720), (3360, 76446), (3472, 73980), (3699, 69440), (3720, 69048), (3780, 67952), (3836, 66960), (3906, 65760), (4032, 63705), (4110, 62496), (4185, 61376), (4247, 60480), (4320, 59458), (4340, 59184), (4384, 58590), (4464, 57540), (4795, 53568), (4932, 52080), (4960, 51786), (5040, 50964), (5208, 49320), (5480, 46872), (5580, 46032), (5754, 44640), (5859, 43840), (5952, 43155), (6048, 42470), (6165, 41664), (6510, 39456), (6576, 39060), (6696, 38360), (6720, 38223), (6944, 36990), (7398, 34720), (7440, 34524), (7560, 33976), (7672, 33480), (7812, 32880), (8220, 31248), (8370, 30688), (8494, 30240), (8631, 29760), (8640, 29729), (8680, 29592), (8768, 29295), (8928, 28770), (9590, 26784), (9765, 26304), (9864, 26040), (9920, 25893), (10080, 25482), (10416, 24660), (10960, 23436), (11160, 23016), (11508, 22320), (11718, 21920), (12096, 21235), (12330, 20832), (12741, 20160), (13020, 19728), (13152, 19530), (13392, 19180), (13888, 18495), (14385, 17856), (14796, 17360), (14880, 17262), (15120, 16988), (15344, 16740), (15624, 16440)]