20648880000

素因数分解:

$2^7\times 3^2\times 5^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{241}}^1$

素因数の和:305

約数の個数: 960

約数和(自身を含む): 90221994720

約数和(自身を除く): 69573114720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 17, 18, 20, 21, 24, 25, 28, 30, 32, 34, 35, 36, 40, 42, 45, 48, 50, 51, 56, 60, 63, 64, 68, 70, 72, 75, 80, 84, 85, 90, 96, 100, 102, 105, 112, 119, 120, 125, 126, 128, 136, 140, 144, 150, 153, 160, 168, 170, 175, 180, 192, 200, 204, 210, 224, 225, 238, 240, 241, 250, 252, 255, 272, 280, 288, 300, 306, 315, 320, 336, 340, 350, 357, 360, 375, 384, 400, 408, 420, 425, 448, 450, 476, 480, 482, 500, 504, 510, 525, 544, 560, 576, 595, 600, 612, 625, 630, 640, 672, 680, 700, 714, 720, 723, 750, 765, 800, 816, 840, 850, 875, 896, 900, 952, 960, 964, 1000, 1008, 1020, 1050, 1071, 1088, 1120, 1125, 1152, 1190, 1200, 1205, 1224, 1250, 1260, 1275, 1344, 1360, 1400, 1428, 1440, 1446, 1500, 1530, 1575, 1600, 1632, 1680, 1687, 1700, 1750, 1785, 1800, 1875, 1904, 1920, 1928, 2000, 2016, 2040, 2100, 2125, 2142, 2169, 2176, 2240, 2250, 2380, 2400, 2410, 2448, 2500, 2520, 2550, 2625, 2688, 2720, 2800, 2856, 2880, 2892, 2975, 3000, 3060, 3150, 3200, 3264, 3360, 3374, 3400, 3500, 3570, 3600, 3615, 3750, 3808, 3825, 3856, 4000, 4032, 4080, 4097, 4200, 4250, 4284, 4338, 4375, 4480, 4500, 4760, 4800, 4820, 4896, 5000, 5040, 5061, 5100, 5250, 5355, 5440, 5600, 5625, 5712, 5760, 5784, 5950, 6000, 6025, 6120, 6300, 6375, 6528, 6720, 6748, 6800, 7000, 7140, 7200, 7230, 7500, 7616, 7650, 7712, 7875, 8000, 8064, 8160, 8194, 8400, 8435, 8500, 8568, 8676, 8750, 8925, 9000, 9520, 9600, 9640, 9792, 10000, 10080, 10122, 10200, 10500, 10625, 10710, 10845, 10880, 11200, 11250, 11424, 11568, 11900, 12000, 12050, 12240, 12291, 12600, 12750, 13125, 13440, 13496, 13600, 14000, 14280, 14400, 14460, 14875, 15000, 15183, 15232, 15300, 15424, 15750, 16000, 16320, 16388, 16800, 16870, 17000, 17136, 17352, 17500, 17850, 18000, 18075, 19040, 19125, 19280, 19584, 20000, 20160, 20244, 20400, 20485, 21000, 21250, 21420, 21690, 22400, 22500, 22848, 23136, 23800, 24000, 24100, 24480, 24582, 25200, 25305, 25500, 26250, 26775, 26992, 27200, 28000, 28560, 28679, 28800, 28920, 29750, 30000, 30125, 30366, 30600, 30848, 31500, 31875, 32640, 32776, 33600, 33740, 34000, 34272, 34704, 35000, 35700, 36000, 36150, 36873, 38080, 38250, 38560, 39375, 40000, 40320, 40488, 40800, 40970, 42000, 42175, 42500, 42840, 43380, 44625, 45000, 45696, 46272, 47600, 48000, 48200, 48960, 49164, 50400, 50610, 51000, 52500, 53550, 53984, 54225, 54400, 56000, 57120, 57358, 57840, 59500, 60000, 60250, 60732, 61200, 61455, 63000, 63750, 65552, 67200, 67480, 68000, 68544, 69408, 70000, 71400, 72000, 72300, 73746, 74375, 75915, 76160, 76500, 77120, 78750, 80000, 80976, 81600, 81940, 84000, 84350, 85000, 85680, 86037, 86760, 89250, 90000, 90375, 92544, 95200, 95625, 96400, 97920, 98328, 100800, 101220, 102000, 102425, 105000, 107100, 107968, 108450, 112000, 114240, 114716, 115680, 119000, 120000, 120500, 121464, 122400, 122910, 126000, 126525, 127500, 131104, 133875, 134960, 136000, 137088, 138816, 140000, 142800, 143395, 144000, 144600, 147492, 148750, 150625, 151830, 153000, 154240, 157500, 161952, 163200, 163880, 168000, 168700, 170000, 171360, 172074, 173520, 178500, 180000, 180750, 184365, 190400, 191250, 192800, 196656, 201600, 202440, 204000, 204850, 210000, 210875, 214200, 215936, 216900, 223125, 228480, 229432, 231360, 238000, 240000, 241000, 242928, 244800, 245820, 252000, 253050, 255000, 258111, 262208, 267750, 269920, 271125, 272000, 277632, 280000, 285600, 286790, 289200, 294984, 297500, 301250, 303660, 306000, 307275, 315000, 323904, 327760, 336000, 337400, 340000, 342720, 344148, 347040, 357000, 360000, 361500, 368730, 379575, 380800, 382500, 385600, 393312, 404880, 408000, 409700, 420000, 421750, 428400, 430185, 433800, 446250, 451875, 458864, 462720, 476000, 482000, 485856, 489600, 491640, 504000, 506100, 510000, 512125, 516222, 524416, 535500, 539840, 542250, 560000, 571200, 573580, 578400, 589968, 595000, 602500, 607320, 612000, 614550, 630000, 632625, 647808, 655520, 669375, 674800, 680000, 685440, 688296, 694080, 714000, 716975, 720000, 723000, 737460, 759150, 765000, 771200, 786624, 809760, 816000, 819400, 840000, 843500, 856800, 860370, 867600, 892500, 903750, 917728, 921825, 952000, 964000, 971712, 983280, 1008000, 1012200, 1020000, 1024250, 1032444, 1054375, 1071000, 1079680, 1084500, 1142400, 1147160, 1156800, 1179936, 1190000, 1205000, 1214640, 1224000, 1229100, 1260000, 1265250, 1290555, 1311040, 1338750, 1349600, 1355625, 1360000, 1376592, 1388160, 1428000, 1433950, 1446000, 1474920, 1518300, 1530000, 1536375, 1573248, 1619520, 1638800, 1680000, 1687000, 1713600, 1720740, 1735200, 1785000, 1807500, 1835456, 1843650, 1897875, 1904000, 1928000, 1943424, 1966560, 2024400, 2040000, 2048500, 2064888, 2108750, 2142000, 2150925, 2169000, 2294320, 2313600, 2359872, 2380000, 2410000, 2429280, 2448000, 2458200, 2520000, 2530500, 2560625, 2581110, 2622080, 2677500, 2699200, 2711250, 2753184, 2856000, 2867900, 2892000, 2949840, 3036600, 3060000, 3072750, 3163125, 3239040, 3277600, 3374000, 3427200, 3441480, 3470400, 3570000, 3584875, 3615000, 3670912, 3687300, 3795750, 3856000, 3933120, 4048800, 4080000, 4097000, 4129776, 4217500, 4284000, 4301850, 4338000, 4588640, 4609125, 4719744, 4760000, 4820000, 4858560, 4916400, 5040000, 5061000, 5121250, 5162220, 5355000, 5398400, 5422500, 5506368, 5712000, 5735800, 5784000, 5899680, 6073200, 6120000, 6145500, 6326250, 6452775, 6555200, 6748000, 6882960, 6940800, 7140000, 7169750, 7230000, 7374600, 7591500, 7681875, 7866240, 8097600, 8194000, 8259552, 8435000, 8568000, 8603700, 8676000, 9177280, 9218250, 9489375, 9520000, 9640000, 9717120, 9832800, 10122000, 10242500, 10324440, 10710000, 10754625, 10845000, 11012736, 11471600, 11568000, 11799360, 12146400, 12240000, 12291000, 12652500, 12905550, 13110400, 13496000, 13765920, 14280000, 14339500, 14460000, 14749200, 15183000, 15363750, 16195200, 16388000, 16519104, 16870000, 17136000, 17207400, 17352000, 17924375, 18354560, 18436500, 18978750, 19280000, 19665600, 20244000, 20485000, 20648880, 21420000, 21509250, 21690000, 22943200, 23045625, 23598720, 24292800, 24582000, 25305000, 25811100, 26992000, 27531840, 28560000, 28679000, 28920000, 29498400, 30366000, 30727500, 32263875, 32776000, 33038208, 33740000, 34414800, 34704000, 35848750, 36873000, 37957500, 39331200, 40488000, 40970000, 41297760, 42840000, 43018500, 43380000, 45886400, 46091250, 48585600, 49164000, 50610000, 51622200, 53773125, 55063680, 57358000, 57840000, 58996800, 60732000, 61455000, 64527750, 65552000, 67480000, 68829600, 71697500, 73746000, 75915000, 80976000, 81940000, 82595520, 85680000, 86037000, 86760000, 91772800, 92182500, 98328000, 101220000, 103244400, 107546250, 114716000, 117993600, 121464000, 122910000, 129055500, 134960000, 137659200, 143395000, 147492000, 151830000, 161319375, 163880000, 165191040, 172074000, 173520000, 184365000, 196656000, 202440000, 206488800, 215092500, 229432000, 242928000, 245820000, 258111000, 275318400, 286790000, 294984000, 303660000, 322638750, 327760000, 344148000, 368730000, 404880000, 412977600, 430185000, 458864000, 491640000, 516222000, 573580000, 589968000, 607320000, 645277500, 688296000, 737460000, 825955200, 860370000, 983280000, 1032444000, 1147160000, 1214640000, 1290555000, 1376592000, 1474920000, 1720740000, 2064888000, 2294320000, 2581110000, 2949840000, 3441480000, 4129776000, 5162220000, 6882960000, 10324440000, 20648880000]

約数ペア:

[(1, 20648880000), (2, 10324440000), (3, 6882960000), (4, 5162220000), (5, 4129776000), (6, 3441480000), (7, 2949840000), (8, 2581110000), (9, 2294320000), (10, 2064888000), (12, 1720740000), (14, 1474920000), (15, 1376592000), (16, 1290555000), (17, 1214640000), (18, 1147160000), (20, 1032444000), (21, 983280000), (24, 860370000), (25, 825955200), (28, 737460000), (30, 688296000), (32, 645277500), (34, 607320000), (35, 589968000), (36, 573580000), (40, 516222000), (42, 491640000), (45, 458864000), (48, 430185000), (50, 412977600), (51, 404880000), (56, 368730000), (60, 344148000), (63, 327760000), (64, 322638750), (68, 303660000), (70, 294984000), (72, 286790000), (75, 275318400), (80, 258111000), (84, 245820000), (85, 242928000), (90, 229432000), (96, 215092500), (100, 206488800), (102, 202440000), (105, 196656000), (112, 184365000), (119, 173520000), (120, 172074000), (125, 165191040), (126, 163880000), (128, 161319375), (136, 151830000), (140, 147492000), (144, 143395000), (150, 137659200), (153, 134960000), (160, 129055500), (168, 122910000), (170, 121464000), (175, 117993600), (180, 114716000), (192, 107546250), (200, 103244400), (204, 101220000), (210, 98328000), (224, 92182500), (225, 91772800), (238, 86760000), (240, 86037000), (241, 85680000), (250, 82595520), (252, 81940000), (255, 80976000), (272, 75915000), (280, 73746000), (288, 71697500), (300, 68829600), (306, 67480000), (315, 65552000), (320, 64527750), (336, 61455000), (340, 60732000), (350, 58996800), (357, 57840000), (360, 57358000), (375, 55063680), (384, 53773125), (400, 51622200), (408, 50610000), (420, 49164000), (425, 48585600), (448, 46091250), (450, 45886400), (476, 43380000), (480, 43018500), (482, 42840000), (500, 41297760), (504, 40970000), (510, 40488000), (525, 39331200), (544, 37957500), (560, 36873000), (576, 35848750), (595, 34704000), (600, 34414800), (612, 33740000), (625, 33038208), (630, 32776000), (640, 32263875), (672, 30727500), (680, 30366000), (700, 29498400), (714, 28920000), (720, 28679000), (723, 28560000), (750, 27531840), (765, 26992000), (800, 25811100), (816, 25305000), (840, 24582000), (850, 24292800), (875, 23598720), (896, 23045625), (900, 22943200), (952, 21690000), (960, 21509250), (964, 21420000), (1000, 20648880), (1008, 20485000), (1020, 20244000), (1050, 19665600), (1071, 19280000), (1088, 18978750), (1120, 18436500), (1125, 18354560), (1152, 17924375), (1190, 17352000), (1200, 17207400), (1205, 17136000), (1224, 16870000), (1250, 16519104), (1260, 16388000), (1275, 16195200), (1344, 15363750), (1360, 15183000), (1400, 14749200), (1428, 14460000), (1440, 14339500), (1446, 14280000), (1500, 13765920), (1530, 13496000), (1575, 13110400), (1600, 12905550), (1632, 12652500), (1680, 12291000), (1687, 12240000), (1700, 12146400), (1750, 11799360), (1785, 11568000), (1800, 11471600), (1875, 11012736), (1904, 10845000), (1920, 10754625), (1928, 10710000), (2000, 10324440), (2016, 10242500), (2040, 10122000), (2100, 9832800), (2125, 9717120), (2142, 9640000), (2169, 9520000), (2176, 9489375), (2240, 9218250), (2250, 9177280), (2380, 8676000), (2400, 8603700), (2410, 8568000), (2448, 8435000), (2500, 8259552), (2520, 8194000), (2550, 8097600), (2625, 7866240), (2688, 7681875), (2720, 7591500), (2800, 7374600), (2856, 7230000), (2880, 7169750), (2892, 7140000), (2975, 6940800), (3000, 6882960), (3060, 6748000), (3150, 6555200), (3200, 6452775), (3264, 6326250), (3360, 6145500), (3374, 6120000), (3400, 6073200), (3500, 5899680), (3570, 5784000), (3600, 5735800), (3615, 5712000), (3750, 5506368), (3808, 5422500), (3825, 5398400), (3856, 5355000), (4000, 5162220), (4032, 5121250), (4080, 5061000), (4097, 5040000), (4200, 4916400), (4250, 4858560), (4284, 4820000), (4338, 4760000), (4375, 4719744), (4480, 4609125), (4500, 4588640), (4760, 4338000), (4800, 4301850), (4820, 4284000), (4896, 4217500), (5000, 4129776), (5040, 4097000), (5061, 4080000), (5100, 4048800), (5250, 3933120), (5355, 3856000), (5440, 3795750), (5600, 3687300), (5625, 3670912), (5712, 3615000), (5760, 3584875), (5784, 3570000), (5950, 3470400), (6000, 3441480), (6025, 3427200), (6120, 3374000), (6300, 3277600), (6375, 3239040), (6528, 3163125), (6720, 3072750), (6748, 3060000), (6800, 3036600), (7000, 2949840), (7140, 2892000), (7200, 2867900), (7230, 2856000), (7500, 2753184), (7616, 2711250), (7650, 2699200), (7712, 2677500), (7875, 2622080), (8000, 2581110), (8064, 2560625), (8160, 2530500), (8194, 2520000), (8400, 2458200), (8435, 2448000), (8500, 2429280), (8568, 2410000), (8676, 2380000), (8750, 2359872), (8925, 2313600), (9000, 2294320), (9520, 2169000), (9600, 2150925), (9640, 2142000), (9792, 2108750), (10000, 2064888), (10080, 2048500), (10122, 2040000), (10200, 2024400), (10500, 1966560), (10625, 1943424), (10710, 1928000), (10845, 1904000), (10880, 1897875), (11200, 1843650), (11250, 1835456), (11424, 1807500), (11568, 1785000), (11900, 1735200), (12000, 1720740), (12050, 1713600), (12240, 1687000), (12291, 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(26992, 765000), (27200, 759150), (28000, 737460), (28560, 723000), (28679, 720000), (28800, 716975), (28920, 714000), (29750, 694080), (30000, 688296), (30125, 685440), (30366, 680000), (30600, 674800), (30848, 669375), (31500, 655520), (31875, 647808), (32640, 632625), (32776, 630000), (33600, 614550), (33740, 612000), (34000, 607320), (34272, 602500), (34704, 595000), (35000, 589968), (35700, 578400), (36000, 573580), (36150, 571200), (36873, 560000), (38080, 542250), (38250, 539840), (38560, 535500), (39375, 524416), (40000, 516222), (40320, 512125), (40488, 510000), (40800, 506100), (40970, 504000), (42000, 491640), (42175, 489600), (42500, 485856), (42840, 482000), (43380, 476000), (44625, 462720), (45000, 458864), (45696, 451875), (46272, 446250), (47600, 433800), (48000, 430185), (48200, 428400), (48960, 421750), (49164, 420000), (50400, 409700), (50610, 408000), (51000, 404880), (52500, 393312), (53550, 385600), (53984, 382500), (54225, 380800), (54400, 379575), (56000, 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