640271520

素因数分解:

$2^5\times 3^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{683}}^1$

素因数の和:745

約数の個数: 384

約数和(自身を含む): 2647572480

約数和(自身を除く): 2007300960

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, 70, 72, 80, 84, 90, 93, 96, 105, 108, 112, 120, 124, 126, 135, 140, 144, 155, 160, 168, 180, 186, 189, 210, 216, 217, 224, 240, 248, 252, 270, 279, 280, 288, 310, 315, 336, 360, 372, 378, 420, 432, 434, 465, 480, 496, 504, 540, 558, 560, 620, 630, 651, 672, 683, 720, 744, 756, 837, 840, 864, 868, 930, 945, 992, 1008, 1080, 1085, 1116, 1120, 1240, 1260, 1302, 1366, 1395, 1440, 1488, 1512, 1674, 1680, 1736, 1860, 1890, 1953, 2016, 2049, 2160, 2170, 2232, 2480, 2520, 2604, 2732, 2790, 2976, 3024, 3255, 3348, 3360, 3415, 3472, 3720, 3780, 3906, 4098, 4185, 4320, 4340, 4464, 4781, 4960, 5040, 5208, 5464, 5580, 5859, 6048, 6147, 6510, 6696, 6830, 6944, 7440, 7560, 7812, 8196, 8370, 8680, 8928, 9562, 9765, 10080, 10245, 10416, 10928, 11160, 11718, 12294, 13020, 13392, 13660, 14343, 14880, 15120, 15624, 16392, 16740, 17360, 18441, 19124, 19530, 20490, 20832, 21173, 21856, 22320, 23436, 23905, 24588, 26040, 26784, 27320, 28686, 29295, 30240, 30735, 31248, 32784, 33480, 34720, 36882, 38248, 39060, 40980, 42346, 43029, 44640, 46872, 47810, 49176, 52080, 54640, 57372, 58590, 61470, 62496, 63519, 65568, 66960, 71715, 73764, 76496, 78120, 81960, 84692, 86058, 92205, 93744, 95620, 98352, 104160, 105865, 109280, 114744, 117180, 122940, 127038, 129087, 133920, 143430, 147528, 148211, 152992, 156240, 163920, 169384, 172116, 184410, 187488, 190557, 191240, 196704, 211730, 215145, 229488, 234360, 245880, 254076, 258174, 286860, 295056, 296422, 312480, 317595, 327840, 338768, 344232, 368820, 381114, 382480, 423460, 430290, 444633, 458976, 468720, 491760, 508152, 516348, 571671, 573720, 590112, 592844, 635190, 645435, 677536, 688464, 737640, 741055, 762228, 764960, 846920, 860580, 889266, 937440, 952785, 983520, 1016304, 1032696, 1143342, 1147440, 1185688, 1270380, 1290870, 1333899, 1376928, 1475280, 1482110, 1524456, 1693840, 1721160, 1778532, 1905570, 2032608, 2065392, 2223165, 2286684, 2294880, 2371376, 2540760, 2581740, 2667798, 2858355, 2950560, 2964220, 3048912, 3387680, 3442320, 3557064, 3811140, 4001697, 4130784, 4446330, 4573368, 4742752, 5081520, 5163480, 5335596, 5716710, 5928440, 6097824, 6669495, 6884640, 7114128, 7622280, 8003394, 8892660, 9146736, 10163040, 10326960, 10671192, 11433420, 11856880, 13338990, 14228256, 15244560, 16006788, 17785320, 18293472, 20008485, 20653920, 21342384, 22866840, 23713760, 26677980, 30489120, 32013576, 35570640, 40016970, 42684768, 45733680, 53355960, 64027152, 71141280, 80033940, 91467360, 106711920, 128054304, 160067880, 213423840, 320135760, 640271520]

約数ペア:

[(1, 640271520), (2, 320135760), (3, 213423840), (4, 160067880), (5, 128054304), (6, 106711920), (7, 91467360), (8, 80033940), (9, 71141280), (10, 64027152), (12, 53355960), (14, 45733680), (15, 42684768), (16, 40016970), (18, 35570640), (20, 32013576), (21, 30489120), (24, 26677980), (27, 23713760), (28, 22866840), (30, 21342384), (31, 20653920), (32, 20008485), (35, 18293472), (36, 17785320), (40, 16006788), (42, 15244560), (45, 14228256), (48, 13338990), (54, 11856880), (56, 11433420), (60, 10671192), (62, 10326960), (63, 10163040), (70, 9146736), (72, 8892660), (80, 8003394), (84, 7622280), (90, 7114128), (93, 6884640), (96, 6669495), (105, 6097824), (108, 5928440), (112, 5716710), (120, 5335596), (124, 5163480), (126, 5081520), (135, 4742752), (140, 4573368), (144, 4446330), (155, 4130784), (160, 4001697), (168, 3811140), (180, 3557064), (186, 3442320), (189, 3387680), (210, 3048912), (216, 2964220), (217, 2950560), (224, 2858355), (240, 2667798), (248, 2581740), (252, 2540760), (270, 2371376), (279, 2294880), (280, 2286684), (288, 2223165), (310, 2065392), (315, 2032608), (336, 1905570), (360, 1778532), (372, 1721160), (378, 1693840), (420, 1524456), (432, 1482110), (434, 1475280), (465, 1376928), (480, 1333899), (496, 1290870), (504, 1270380), (540, 1185688), (558, 1147440), (560, 1143342), (620, 1032696), (630, 1016304), (651, 983520), (672, 952785), (683, 937440), (720, 889266), (744, 860580), (756, 846920), (837, 764960), (840, 762228), (864, 741055), (868, 737640), (930, 688464), (945, 677536), (992, 645435), (1008, 635190), (1080, 592844), (1085, 590112), (1116, 573720), (1120, 571671), (1240, 516348), (1260, 508152), (1302, 491760), (1366, 468720), (1395, 458976), (1440, 444633), (1488, 430290), (1512, 423460), (1674, 382480), (1680, 381114), (1736, 368820), (1860, 344232), (1890, 338768), (1953, 327840), (2016, 317595), (2049, 312480), (2160, 296422), (2170, 295056), (2232, 286860), (2480, 258174), (2520, 254076), (2604, 245880), (2732, 234360), (2790, 229488), (2976, 215145), (3024, 211730), (3255, 196704), (3348, 191240), (3360, 190557), (3415, 187488), (3472, 184410), (3720, 172116), (3780, 169384), (3906, 163920), (4098, 156240), (4185, 152992), (4320, 148211), (4340, 147528), (4464, 143430), (4781, 133920), (4960, 129087), (5040, 127038), (5208, 122940), (5464, 117180), (5580, 114744), (5859, 109280), (6048, 105865), (6147, 104160), (6510, 98352), (6696, 95620), (6830, 93744), (6944, 92205), (7440, 86058), (7560, 84692), (7812, 81960), (8196, 78120), (8370, 76496), (8680, 73764), (8928, 71715), (9562, 66960), (9765, 65568), (10080, 63519), (10245, 62496), (10416, 61470), (10928, 58590), (11160, 57372), (11718, 54640), (12294, 52080), (13020, 49176), (13392, 47810), (13660, 46872), (14343, 44640), (14880, 43029), (15120, 42346), (15624, 40980), (16392, 39060), (16740, 38248), (17360, 36882), (18441, 34720), (19124, 33480), (19530, 32784), (20490, 31248), (20832, 30735), (21173, 30240), (21856, 29295), (22320, 28686), (23436, 27320), (23905, 26784), (24588, 26040)]