20721657600

素因数分解:

$2^8\times 3^3\times 5^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{463}}^1$

素因数の和:542

約数の個数: 864

約数和(自身を含む): 89378723840

約数和(自身を除く): 68657066240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 25, 27, 28, 30, 32, 35, 36, 37, 40, 42, 45, 48, 50, 54, 56, 60, 63, 64, 70, 72, 74, 75, 80, 84, 90, 96, 100, 105, 108, 111, 112, 120, 126, 128, 135, 140, 144, 148, 150, 160, 168, 175, 180, 185, 189, 192, 200, 210, 216, 222, 224, 225, 240, 252, 256, 259, 270, 280, 288, 296, 300, 315, 320, 333, 336, 350, 360, 370, 378, 384, 400, 420, 432, 444, 448, 450, 463, 480, 504, 518, 525, 540, 555, 560, 576, 592, 600, 630, 640, 666, 672, 675, 700, 720, 740, 756, 768, 777, 800, 840, 864, 888, 896, 900, 925, 926, 945, 960, 999, 1008, 1036, 1050, 1080, 1110, 1120, 1152, 1184, 1200, 1260, 1280, 1295, 1332, 1344, 1350, 1389, 1400, 1440, 1480, 1512, 1554, 1575, 1600, 1665, 1680, 1728, 1776, 1792, 1800, 1850, 1852, 1890, 1920, 1998, 2016, 2072, 2100, 2160, 2220, 2240, 2304, 2315, 2331, 2368, 2400, 2520, 2590, 2664, 2688, 2700, 2775, 2778, 2800, 2880, 2960, 3024, 3108, 3150, 3200, 3241, 3330, 3360, 3456, 3552, 3600, 3700, 3704, 3780, 3840, 3885, 3996, 4032, 4144, 4167, 4200, 4320, 4440, 4480, 4630, 4662, 4725, 4736, 4800, 4995, 5040, 5180, 5328, 5376, 5400, 5550, 5556, 5600, 5760, 5920, 6048, 6216, 6300, 6400, 6475, 6482, 6660, 6720, 6912, 6945, 6993, 7104, 7200, 7400, 7408, 7560, 7770, 7992, 8064, 8288, 8325, 8334, 8400, 8640, 8880, 8960, 9260, 9324, 9450, 9472, 9600, 9723, 9990, 10080, 10360, 10656, 10800, 11100, 11112, 11200, 11520, 11575, 11655, 11840, 12096, 12432, 12501, 12600, 12950, 12964, 13320, 13440, 13890, 13986, 14208, 14400, 14800, 14816, 15120, 15540, 15984, 16128, 16205, 16576, 16650, 16668, 16800, 17131, 17280, 17760, 18520, 18648, 18900, 19200, 19425, 19446, 19980, 20160, 20720, 20835, 21312, 21600, 22200, 22224, 22400, 23150, 23310, 23680, 24192, 24864, 24975, 25002, 25200, 25900, 25928, 26640, 26880, 27780, 27972, 28416, 28800, 29169, 29600, 29632, 30240, 31080, 31968, 32410, 33152, 33300, 33336, 33600, 34262, 34560, 34725, 34965, 35520, 37040, 37296, 37800, 38850, 38892, 39960, 40320, 41440, 41670, 42624, 43200, 44400, 44448, 44800, 46300, 46620, 47360, 48384, 48615, 49728, 49950, 50004, 50400, 51393, 51800, 51856, 53280, 55560, 55944, 57600, 58275, 58338, 59200, 59264, 60480, 62160, 62505, 63936, 64820, 66304, 66600, 66672, 67200, 68524, 69450, 69930, 71040, 74080, 74592, 75600, 77700, 77784, 79920, 80640, 81025, 82880, 83340, 85248, 85655, 86400, 87507, 88800, 88896, 92600, 93240, 97230, 99456, 99900, 100008, 100800, 102786, 103600, 103712, 104175, 106560, 111120, 111888, 116550, 116676, 118400, 118528, 119917, 120960, 124320, 125010, 127872, 129640, 133200, 133344, 134400, 137048, 138900, 139860, 142080, 145845, 148160, 149184, 151200, 154179, 155400, 155568, 159840, 162050, 165760, 166680, 171310, 172800, 174825, 175014, 177600, 177792, 185200, 186480, 194460, 198912, 199800, 200016, 201600, 205572, 207200, 207424, 208350, 213120, 222240, 223776, 233100, 233352, 236800, 239834, 241920, 243075, 248640, 250020, 255744, 256965, 259280, 266400, 266688, 274096, 277800, 279720, 291690, 296320, 298368, 302400, 308358, 310800, 311136, 312525, 319680, 324100, 331520, 333360, 342620, 349650, 350028, 355200, 355584, 359751, 370400, 372960, 388920, 399600, 400032, 403200, 411144, 414400, 414848, 416700, 426240, 428275, 437535, 444480, 447552, 462537, 466200, 466704, 479668, 486150, 497280, 500040, 513930, 518560, 532800, 533376, 548192, 555600, 559440, 583380, 592640, 596736, 599585, 604800, 616716, 621600, 622272, 625050, 639360, 648200, 666720, 685240, 699300, 700056, 710400, 719502, 729225, 740800, 745920, 770895, 777840, 799200, 800064, 822288, 828800, 829696, 833400, 856550, 875070, 888960, 895104, 925074, 932400, 933408, 959336, 972300, 994560, 1000080, 1027860, 1037120, 1065600, 1066752, 1079253, 1096384, 1111200, 1118880, 1166760, 1199170, 1209600, 1233432, 1243200, 1244544, 1250100, 1278720, 1284825, 1296400, 1333440, 1370480, 1398600, 1400112, 1439004, 1458450, 1481600, 1491840, 1541790, 1555680, 1598400, 1600128, 1644576, 1657600, 1666800, 1713100, 1750140, 1777920, 1790208, 1798755, 1850148, 1864800, 1866816, 1918672, 1944600, 2000160, 2055720, 2074240, 2131200, 2158506, 2187675, 2192768, 2222400, 2237760, 2312685, 2333520, 2398340, 2466864, 2486400, 2489088, 2500200, 2569650, 2592800, 2666880, 2740960, 2797200, 2800224, 2878008, 2916900, 2963200, 2983680, 2997925, 3083580, 3111360, 3196800, 3200256, 3237759, 3289152, 3333600, 3426200, 3500280, 3597510, 3700296, 3729600, 3733632, 3837344, 3854475, 3889200, 4000320, 4111440, 4148480, 4317012, 4375350, 4385536, 4444800, 4475520, 4625370, 4667040, 4796680, 4933728, 4972800, 5000400, 5139300, 5185600, 5333760, 5396265, 5481920, 5594400, 5600448, 5756016, 5833800, 5995850, 6167160, 6222720, 6393600, 6475518, 6578304, 6667200, 6852400, 7000560, 7195020, 7400592, 7459200, 7467264, 7674688, 7708950, 7778400, 8000640, 8222880, 8634024, 8750700, 8889600, 8951040, 8993775, 9250740, 9334080, 9593360, 9867456, 10000800, 10278600, 10371200, 10792530, 10963840, 11188800, 11200896, 11512032, 11563425, 11667600, 11991700, 12334320, 12445440, 12951036, 13156608, 13334400, 13704800, 14001120, 14390040, 14801184, 14918400, 15349376, 15417900, 15556800, 16001280, 16188795, 16445760, 17268048, 17501400, 17987550, 18501480, 18668160, 19186720, 19734912, 20001600, 20557200, 20742400, 21585060, 21927680, 22377600, 22401792, 23024064, 23126850, 23335200, 23983400, 24668640, 25902072, 26668800, 26981325, 27409600, 28002240, 28780080, 29602368, 30698752, 30835800, 31113600, 32377590, 32891520, 34536096, 35002800, 35975100, 37002960, 37336320, 38373440, 39469824, 40003200, 41114400, 43170120, 44755200, 46048128, 46253700, 46670400, 47966800, 49337280, 51804144, 53962650, 54819200, 56004480, 57560160, 59204736, 61671600, 62227200, 64755180, 65783040, 69072192, 70005600, 71950200, 74005920, 76746880, 80006400, 80943975, 82228800, 86340240, 92096256, 92507400, 93340800, 95933600, 98674560, 103608288, 107925300, 109638400, 112008960, 115120320, 118409472, 123343200, 129510360, 138144384, 140011200, 143900400, 148011840, 153493760, 161887950, 164457600, 172680480, 185014800, 186681600, 191867200, 197349120, 207216576, 215850600, 230240640, 246686400, 259020720, 276288768, 280022400, 287800800, 296023680, 323775900, 328915200, 345360960, 370029600, 383734400, 414433152, 431701200, 460481280, 493372800, 518041440, 560044800, 575601600, 592047360, 647551800, 690721920, 740059200, 767468800, 828866304, 863402400, 986745600, 1036082880, 1151203200, 1295103600, 1381443840, 1480118400, 1726804800, 2072165760, 2302406400, 2590207200, 2960236800, 3453609600, 4144331520, 5180414400, 6907219200, 10360828800, 20721657600]

約数ペア:

[(1, 20721657600), (2, 10360828800), (3, 6907219200), (4, 5180414400), (5, 4144331520), (6, 3453609600), (7, 2960236800), (8, 2590207200), (9, 2302406400), (10, 2072165760), (12, 1726804800), (14, 1480118400), (15, 1381443840), (16, 1295103600), (18, 1151203200), (20, 1036082880), (21, 986745600), (24, 863402400), (25, 828866304), (27, 767468800), (28, 740059200), (30, 690721920), (32, 647551800), (35, 592047360), (36, 575601600), (37, 560044800), (40, 518041440), (42, 493372800), (45, 460481280), (48, 431701200), (50, 414433152), (54, 383734400), (56, 370029600), (60, 345360960), (63, 328915200), (64, 323775900), (70, 296023680), (72, 287800800), (74, 280022400), (75, 276288768), (80, 259020720), (84, 246686400), (90, 230240640), (96, 215850600), (100, 207216576), (105, 197349120), (108, 191867200), (111, 186681600), (112, 185014800), (120, 172680480), (126, 164457600), (128, 161887950), (135, 153493760), (140, 148011840), (144, 143900400), (148, 140011200), (150, 138144384), (160, 129510360), (168, 123343200), (175, 118409472), (180, 115120320), (185, 112008960), (189, 109638400), (192, 107925300), (200, 103608288), (210, 98674560), (216, 95933600), (222, 93340800), (224, 92507400), (225, 92096256), (240, 86340240), (252, 82228800), (256, 80943975), (259, 80006400), (270, 76746880), (280, 74005920), (288, 71950200), (296, 70005600), (300, 69072192), (315, 65783040), (320, 64755180), (333, 62227200), (336, 61671600), (350, 59204736), (360, 57560160), (370, 56004480), (378, 54819200), (384, 53962650), (400, 51804144), (420, 49337280), (432, 47966800), (444, 46670400), (448, 46253700), (450, 46048128), (463, 44755200), (480, 43170120), (504, 41114400), (518, 40003200), (525, 39469824), (540, 38373440), (555, 37336320), (560, 37002960), (576, 35975100), (592, 35002800), (600, 34536096), (630, 32891520), (640, 32377590), (666, 31113600), (672, 30835800), (675, 30698752), (700, 29602368), (720, 28780080), (740, 28002240), (756, 27409600), (768, 26981325), (777, 26668800), (800, 25902072), (840, 24668640), (864, 23983400), (888, 23335200), (896, 23126850), (900, 23024064), (925, 22401792), (926, 22377600), (945, 21927680), (960, 21585060), (999, 20742400), (1008, 20557200), (1036, 20001600), (1050, 19734912), (1080, 19186720), (1110, 18668160), (1120, 18501480), (1152, 17987550), (1184, 17501400), (1200, 17268048), (1260, 16445760), (1280, 16188795), (1295, 16001280), (1332, 15556800), (1344, 15417900), (1350, 15349376), (1389, 14918400), (1400, 14801184), (1440, 14390040), (1480, 14001120), (1512, 13704800), (1554, 13334400), (1575, 13156608), (1600, 12951036), (1665, 12445440), (1680, 12334320), (1728, 11991700), (1776, 11667600), (1792, 11563425), (1800, 11512032), (1850, 11200896), (1852, 11188800), (1890, 10963840), (1920, 10792530), (1998, 10371200), (2016, 10278600), (2072, 10000800), (2100, 9867456), (2160, 9593360), (2220, 9334080), (2240, 9250740), (2304, 8993775), (2315, 8951040), (2331, 8889600), (2368, 8750700), (2400, 8634024), (2520, 8222880), (2590, 8000640), (2664, 7778400), (2688, 7708950), (2700, 7674688), (2775, 7467264), (2778, 7459200), (2800, 7400592), (2880, 7195020), (2960, 7000560), (3024, 6852400), (3108, 6667200), (3150, 6578304), (3200, 6475518), (3241, 6393600), (3330, 6222720), (3360, 6167160), (3456, 5995850), (3552, 5833800), (3600, 5756016), (3700, 5600448), (3704, 5594400), (3780, 5481920), (3840, 5396265), (3885, 5333760), (3996, 5185600), (4032, 5139300), (4144, 5000400), (4167, 4972800), (4200, 4933728), (4320, 4796680), (4440, 4667040), (4480, 4625370), (4630, 4475520), (4662, 4444800), (4725, 4385536), (4736, 4375350), (4800, 4317012), (4995, 4148480), (5040, 4111440), (5180, 4000320), (5328, 3889200), (5376, 3854475), (5400, 3837344), (5550, 3733632), (5556, 3729600), (5600, 3700296), (5760, 3597510), (5920, 3500280), (6048, 3426200), (6216, 3333600), (6300, 3289152), (6400, 3237759), (6475, 3200256), (6482, 3196800), (6660, 3111360), (6720, 3083580), (6912, 2997925), (6945, 2983680), (6993, 2963200), (7104, 2916900), (7200, 2878008), (7400, 2800224), (7408, 2797200), (7560, 2740960), (7770, 2666880), (7992, 2592800), (8064, 2569650), (8288, 2500200), (8325, 2489088), (8334, 2486400), (8400, 2466864), (8640, 2398340), (8880, 2333520), (8960, 2312685), (9260, 2237760), (9324, 2222400), (9450, 2192768), (9472, 2187675), (9600, 2158506), (9723, 2131200), (9990, 2074240), (10080, 2055720), (10360, 2000160), (10656, 1944600), (10800, 1918672), (11100, 1866816), (11112, 1864800), (11200, 1850148), (11520, 1798755), (11575, 1790208), (11655, 1777920), (11840, 1750140), (12096, 1713100), (12432, 1666800), (12501, 1657600), (12600, 1644576), (12950, 1600128), (12964, 1598400), (13320, 1555680), (13440, 1541790), (13890, 1491840), (13986, 1481600), (14208, 1458450), (14400, 1439004), (14800, 1400112), (14816, 1398600), (15120, 1370480), (15540, 1333440), (15984, 1296400), (16128, 1284825), (16205, 1278720), (16576, 1250100), (16650, 1244544), (16668, 1243200), (16800, 1233432), (17131, 1209600), (17280, 1199170), (17760, 1166760), (18520, 1118880), (18648, 1111200), (18900, 1096384), (19200, 1079253), (19425, 1066752), (19446, 1065600), (19980, 1037120), (20160, 1027860), (20720, 1000080), (20835, 994560), (21312, 972300), (21600, 959336), (22200, 933408), (22224, 932400), (22400, 925074), (23150, 895104), (23310, 888960), (23680, 875070), (24192, 856550), (24864, 833400), (24975, 829696), (25002, 828800), (25200, 822288), (25900, 800064), (25928, 799200), (26640, 777840), (26880, 770895), (27780, 745920), (27972, 740800), (28416, 729225), (28800, 719502), (29169, 710400), (29600, 700056), (29632, 699300), (30240, 685240), (31080, 666720), (31968, 648200), (32410, 639360), (33152, 625050), (33300, 622272), (33336, 621600), (33600, 616716), (34262, 604800), (34560, 599585), (34725, 596736), (34965, 592640), (35520, 583380), (37040, 559440), (37296, 555600), (37800, 548192), (38850, 533376), (38892, 532800), (39960, 518560), (40320, 513930), (41440, 500040), (41670, 497280), (42624, 486150), (43200, 479668), (44400, 466704), (44448, 466200), (44800, 462537), (46300, 447552), (46620, 444480), (47360, 437535), (48384, 428275), (48615, 426240), (49728, 416700), (49950, 414848), (50004, 414400), (50400, 411144), (51393, 403200), (51800, 400032), (51856, 399600), (53280, 388920), (55560, 372960), (55944, 370400), (57600, 359751), (58275, 355584), (58338, 355200), (59200, 350028), (59264, 349650), (60480, 342620), (62160, 333360), (62505, 331520), (63936, 324100), (64820, 319680), (66304, 312525), (66600, 311136), (66672, 310800), (67200, 308358), (68524, 302400), (69450, 298368), (69930, 296320), (71040, 291690), (74080, 279720), (74592, 277800), (75600, 274096), (77700, 266688), (77784, 266400), (79920, 259280), (80640, 256965), (81025, 255744), (82880, 250020), (83340, 248640), (85248, 243075), (85655, 241920), (86400, 239834), (87507, 236800), (88800, 233352), (88896, 233100), (92600, 223776), (93240, 222240), (97230, 213120), (99456, 208350), (99900, 207424), (100008, 207200), (100800, 205572), (102786, 201600), (103600, 200016), (103712, 199800), (104175, 198912), (106560, 194460), (111120, 186480), (111888, 185200), (116550, 177792), (116676, 177600), (118400, 175014), (118528, 174825), (119917, 172800), (120960, 171310), (124320, 166680), (125010, 165760), (127872, 162050), (129640, 159840), (133200, 155568), (133344, 155400), (134400, 154179), (137048, 151200), (138900, 149184), (139860, 148160), (142080, 145845)]