20728915200

素因数分解:

$2^8\times 3^3\times 5^2\times 7^1\times {\mathrm{17137}}^1$

素因数の和:17179

約数の個数: 432

約数和(自身を含む): 86874578560

約数和(自身を除く): 66145663360

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, 40, 42, 45, 48, 50, 54, 56, 60, 63, 64, 70, 72, 75, 80, 84, 90, 96, 100, 105, 108, 112, 120, 126, 128, 135, 140, 144, 150, 160, 168, 175, 180, 189, 192, 200, 210, 216, 224, 225, 240, 252, 256, 270, 280, 288, 300, 315, 320, 336, 350, 360, 378, 384, 400, 420, 432, 448, 450, 480, 504, 525, 540, 560, 576, 600, 630, 640, 672, 675, 700, 720, 756, 768, 800, 840, 864, 896, 900, 945, 960, 1008, 1050, 1080, 1120, 1152, 1200, 1260, 1280, 1344, 1350, 1400, 1440, 1512, 1575, 1600, 1680, 1728, 1792, 1800, 1890, 1920, 2016, 2100, 2160, 2240, 2304, 2400, 2520, 2688, 2700, 2800, 2880, 3024, 3150, 3200, 3360, 3456, 3600, 3780, 3840, 4032, 4200, 4320, 4480, 4725, 4800, 5040, 5376, 5400, 5600, 5760, 6048, 6300, 6400, 6720, 6912, 7200, 7560, 8064, 8400, 8640, 8960, 9450, 9600, 10080, 10800, 11200, 11520, 12096, 12600, 13440, 14400, 15120, 16128, 16800, 17137, 17280, 18900, 19200, 20160, 21600, 22400, 24192, 25200, 26880, 28800, 30240, 33600, 34274, 34560, 37800, 40320, 43200, 44800, 48384, 50400, 51411, 57600, 60480, 67200, 68548, 75600, 80640, 85685, 86400, 100800, 102822, 119959, 120960, 134400, 137096, 151200, 154233, 171370, 172800, 201600, 205644, 239918, 241920, 257055, 274192, 302400, 308466, 342740, 359877, 403200, 411288, 428425, 462699, 479836, 514110, 548384, 599795, 604800, 616932, 685480, 719754, 771165, 822576, 856850, 925398, 959672, 1028220, 1079631, 1096768, 1199590, 1209600, 1233864, 1285275, 1370960, 1439508, 1542330, 1645152, 1713700, 1799385, 1850796, 1919344, 2056440, 2159262, 2193536, 2313495, 2399180, 2467728, 2570550, 2741920, 2879016, 2998975, 3084660, 3238893, 3290304, 3427400, 3598770, 3701592, 3838688, 3855825, 4112880, 4318524, 4387072, 4626990, 4798360, 4935456, 5141100, 5398155, 5483840, 5758032, 5997950, 6169320, 6477786, 6580608, 6854800, 7197540, 7403184, 7677376, 7711650, 8225760, 8637048, 8996925, 9253980, 9596720, 9870912, 10282200, 10796310, 10967680, 11516064, 11567475, 11995900, 12338640, 12955572, 13161216, 13709600, 14395080, 14806368, 15354752, 15423300, 16194465, 16451520, 17274096, 17993850, 18507960, 19193440, 19741824, 20564400, 21592620, 21935360, 23032128, 23134950, 23991800, 24677280, 25911144, 26990775, 27419200, 28790160, 29612736, 30709504, 30846600, 32388930, 32903040, 34548192, 35987700, 37015920, 38386880, 39483648, 41128800, 43185240, 46064256, 46269900, 47983600, 49354560, 51822288, 53981550, 54838400, 57580320, 59225472, 61693200, 64777860, 65806080, 69096384, 71975400, 74031840, 76773760, 80972325, 82257600, 86370480, 92128512, 92539800, 95967200, 98709120, 103644576, 107963100, 109676800, 115160640, 118450944, 123386400, 129555720, 138192768, 143950800, 148063680, 153547520, 161944650, 164515200, 172740960, 185079600, 191934400, 197418240, 207289152, 215926200, 230321280, 246772800, 259111440, 276385536, 287901600, 296127360, 323889300, 329030400, 345481920, 370159200, 383868800, 414578304, 431852400, 460642560, 493545600, 518222880, 575803200, 592254720, 647778600, 690963840, 740318400, 767737600, 829156608, 863704800, 987091200, 1036445760, 1151606400, 1295557200, 1381927680, 1480636800, 1727409600, 2072891520, 2303212800, 2591114400, 2961273600, 3454819200, 4145783040, 5182228800, 6909638400, 10364457600, 20728915200]

約数ペア:

[(1, 20728915200), (2, 10364457600), (3, 6909638400), (4, 5182228800), (5, 4145783040), (6, 3454819200), (7, 2961273600), (8, 2591114400), (9, 2303212800), (10, 2072891520), (12, 1727409600), (14, 1480636800), (15, 1381927680), (16, 1295557200), (18, 1151606400), (20, 1036445760), (21, 987091200), (24, 863704800), (25, 829156608), (27, 767737600), (28, 740318400), (30, 690963840), (32, 647778600), (35, 592254720), (36, 575803200), (40, 518222880), (42, 493545600), (45, 460642560), (48, 431852400), (50, 414578304), (54, 383868800), (56, 370159200), (60, 345481920), (63, 329030400), (64, 323889300), (70, 296127360), (72, 287901600), (75, 276385536), (80, 259111440), (84, 246772800), (90, 230321280), (96, 215926200), (100, 207289152), (105, 197418240), (108, 191934400), (112, 185079600), (120, 172740960), (126, 164515200), (128, 161944650), (135, 153547520), (140, 148063680), (144, 143950800), (150, 138192768), (160, 129555720), (168, 123386400), (175, 118450944), (180, 115160640), (189, 109676800), (192, 107963100), (200, 103644576), (210, 98709120), (216, 95967200), (224, 92539800), (225, 92128512), (240, 86370480), (252, 82257600), (256, 80972325), (270, 76773760), (280, 74031840), (288, 71975400), (300, 69096384), (315, 65806080), (320, 64777860), (336, 61693200), (350, 59225472), (360, 57580320), (378, 54838400), (384, 53981550), (400, 51822288), (420, 49354560), (432, 47983600), (448, 46269900), (450, 46064256), (480, 43185240), (504, 41128800), (525, 39483648), (540, 38386880), (560, 37015920), (576, 35987700), (600, 34548192), (630, 32903040), (640, 32388930), (672, 30846600), (675, 30709504), (700, 29612736), (720, 28790160), (756, 27419200), (768, 26990775), (800, 25911144), (840, 24677280), (864, 23991800), (896, 23134950), (900, 23032128), (945, 21935360), (960, 21592620), (1008, 20564400), (1050, 19741824), (1080, 19193440), (1120, 18507960), (1152, 17993850), (1200, 17274096), (1260, 16451520), (1280, 16194465), (1344, 15423300), (1350, 15354752), (1400, 14806368), (1440, 14395080), (1512, 13709600), (1575, 13161216), (1600, 12955572), (1680, 12338640), (1728, 11995900), (1792, 11567475), (1800, 11516064), (1890, 10967680), (1920, 10796310), (2016, 10282200), (2100, 9870912), (2160, 9596720), (2240, 9253980), (2304, 8996925), (2400, 8637048), (2520, 8225760), (2688, 7711650), (2700, 7677376), (2800, 7403184), (2880, 7197540), (3024, 6854800), (3150, 6580608), (3200, 6477786), (3360, 6169320), (3456, 5997950), (3600, 5758032), (3780, 5483840), (3840, 5398155), (4032, 5141100), (4200, 4935456), (4320, 4798360), (4480, 4626990), (4725, 4387072), (4800, 4318524), (5040, 4112880), (5376, 3855825), (5400, 3838688), (5600, 3701592), (5760, 3598770), (6048, 3427400), (6300, 3290304), (6400, 3238893), (6720, 3084660), (6912, 2998975), (7200, 2879016), (7560, 2741920), (8064, 2570550), (8400, 2467728), (8640, 2399180), (8960, 2313495), (9450, 2193536), (9600, 2159262), (10080, 2056440), (10800, 1919344), (11200, 1850796), (11520, 1799385), (12096, 1713700), (12600, 1645152), (13440, 1542330), (14400, 1439508), (15120, 1370960), (16128, 1285275), (16800, 1233864), (17137, 1209600), (17280, 1199590), (18900, 1096768), (19200, 1079631), (20160, 1028220), (21600, 959672), (22400, 925398), (24192, 856850), (25200, 822576), (26880, 771165), (28800, 719754), (30240, 685480), (33600, 616932), (34274, 604800), (34560, 599795), (37800, 548384), (40320, 514110), (43200, 479836), (44800, 462699), (48384, 428425), (50400, 411288), (51411, 403200), (57600, 359877), (60480, 342740), (67200, 308466), (68548, 302400), (75600, 274192), (80640, 257055), (85685, 241920), (86400, 239918), (100800, 205644), (102822, 201600), (119959, 172800), (120960, 171370), (134400, 154233), (137096, 151200)]