20978666280

素因数分解:

$2^3\times 3^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1$

素因数の和:115

約数の個数: 864

約数和(自身を含む): 85578910560

約数和(自身を除く): 64600244280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 13, 15, 18, 20, 22, 24, 26, 27, 30, 33, 36, 39, 40, 43, 44, 45, 52, 54, 55, 60, 65, 66, 72, 78, 81, 86, 88, 90, 99, 104, 108, 110, 117, 120, 129, 130, 132, 135, 143, 156, 162, 165, 169, 172, 180, 195, 198, 215, 216, 220, 234, 243, 258, 260, 264, 270, 286, 297, 312, 324, 330, 338, 344, 351, 360, 387, 390, 396, 405, 429, 430, 440, 468, 473, 486, 495, 507, 516, 520, 540, 559, 572, 585, 594, 645, 648, 660, 676, 702, 715, 729, 774, 780, 792, 810, 845, 858, 860, 891, 936, 946, 972, 990, 1014, 1032, 1053, 1080, 1118, 1144, 1161, 1170, 1188, 1215, 1287, 1290, 1320, 1352, 1404, 1419, 1430, 1458, 1485, 1521, 1548, 1560, 1620, 1677, 1690, 1716, 1720, 1755, 1782, 1859, 1892, 1935, 1944, 1980, 2028, 2106, 2145, 2187, 2236, 2322, 2340, 2365, 2376, 2430, 2535, 2574, 2580, 2673, 2795, 2808, 2838, 2860, 2916, 2970, 3042, 3096, 3159, 3240, 3354, 3380, 3432, 3483, 3510, 3564, 3645, 3718, 3784, 3861, 3870, 3960, 4056, 4212, 4257, 4290, 4374, 4455, 4472, 4563, 4644, 4680, 4730, 4860, 5031, 5070, 5148, 5160, 5265, 5346, 5577, 5590, 5676, 5720, 5805, 5832, 5940, 6084, 6149, 6318, 6435, 6561, 6708, 6760, 6966, 7020, 7095, 7128, 7267, 7290, 7436, 7605, 7722, 7740, 8019, 8385, 8424, 8514, 8580, 8748, 8910, 9126, 9288, 9295, 9460, 9477, 9720, 10062, 10140, 10296, 10449, 10530, 10692, 10935, 11154, 11180, 11352, 11583, 11610, 11880, 12168, 12298, 12636, 12771, 12870, 13122, 13365, 13416, 13689, 13932, 14040, 14190, 14534, 14580, 14872, 15093, 15210, 15444, 15480, 15795, 16038, 16731, 16770, 17028, 17160, 17415, 17496, 17820, 18252, 18447, 18590, 18920, 18954, 19305, 20124, 20280, 20898, 21060, 21285, 21384, 21801, 21870, 22308, 22360, 22815, 23166, 23220, 24057, 24596, 25155, 25272, 25542, 25740, 26244, 26730, 27378, 27864, 27885, 28380, 28431, 29068, 29160, 30186, 30420, 30745, 30888, 31347, 31590, 32076, 32805, 33462, 33540, 34056, 34749, 34830, 35640, 36335, 36504, 36894, 37180, 37908, 38313, 38610, 40095, 40248, 41067, 41796, 42120, 42570, 43602, 43740, 44616, 45279, 45630, 46332, 46440, 47385, 48114, 49192, 50193, 50310, 51084, 51480, 52245, 52488, 53460, 54756, 55341, 55770, 56760, 56862, 57915, 58136, 60372, 60840, 61490, 62694, 63180, 63855, 64152, 65403, 65610, 66924, 67080, 68445, 69498, 69660, 72171, 72670, 73788, 74360, 75465, 75816, 76626, 77220, 79937, 80190, 82134, 83592, 83655, 85140, 85293, 87204, 87480, 90558, 91260, 92235, 92664, 94041, 94770, 96228, 100386, 100620, 102168, 104247, 104490, 106920, 109005, 109512, 110682, 111540, 113724, 114939, 115830, 120285, 120744, 122980, 123201, 125388, 126360, 127710, 130806, 131220, 133848, 135837, 136890, 138996, 139320, 142155, 144342, 145340, 147576, 150579, 150930, 153252, 154440, 156735, 159874, 160380, 164268, 166023, 167310, 170280, 170586, 173745, 174408, 181116, 182520, 184470, 188082, 189540, 191565, 192456, 196209, 200772, 201240, 205335, 208494, 208980, 218010, 221364, 223080, 226395, 227448, 229878, 231660, 239811, 240570, 245960, 246402, 250776, 250965, 255420, 261612, 262440, 271674, 273780, 276705, 277992, 282123, 284310, 288684, 290680, 301158, 301860, 306504, 312741, 313470, 319748, 320760, 327015, 328536, 332046, 334620, 341172, 344817, 347490, 360855, 362232, 368940, 369603, 376164, 379080, 383130, 392418, 399685, 401544, 407511, 410670, 416988, 417960, 426465, 436020, 442728, 451737, 452790, 459756, 463320, 470205, 479622, 481140, 492804, 498069, 501930, 510840, 521235, 523224, 543348, 547560, 553410, 564246, 568620, 574695, 577368, 588627, 602316, 603720, 616005, 625482, 626940, 639496, 654030, 664092, 669240, 679185, 682344, 689634, 694980, 719433, 721710, 737880, 739206, 752328, 752895, 766260, 784836, 799370, 815022, 821340, 830115, 833976, 852930, 872040, 903474, 905580, 919512, 938223, 940410, 959244, 962280, 981045, 985608, 996138, 1003860, 1034451, 1042470, 1086696, 1106820, 1108809, 1128492, 1137240, 1149390, 1177254, 1199055, 1204632, 1222533, 1232010, 1250964, 1253880, 1308060, 1328184, 1355211, 1358370, 1379268, 1389960, 1410615, 1438866, 1443420, 1478412, 1494207, 1505790, 1532520, 1563705, 1569672, 1598740, 1630044, 1642680, 1660230, 1705860, 1724085, 1765881, 1806948, 1811160, 1848015, 1876446, 1880820, 1918488, 1962090, 1992276, 2007720, 2037555, 2068902, 2084940, 2158299, 2213640, 2217618, 2256984, 2258685, 2298780, 2354508, 2398110, 2445066, 2464020, 2490345, 2501928, 2616120, 2710422, 2716740, 2758536, 2821230, 2877732, 2886840, 2943135, 2956824, 2988414, 3011580, 3103353, 3127410, 3197480, 3260088, 3320460, 3411720, 3448170, 3531762, 3597165, 3613896, 3667599, 3696030, 3752892, 3761640, 3924180, 3984552, 4065633, 4075110, 4137804, 4169880, 4316598, 4435236, 4482621, 4517370, 4597560, 4691115, 4709016, 4796220, 4890132, 4928040, 4980690, 5172255, 5297643, 5420844, 5433480, 5544045, 5642460, 5755464, 5886270, 5976828, 6023160, 6112665, 6206706, 6254820, 6474897, 6640920, 6776055, 6896340, 7063524, 7194330, 7335198, 7392060, 7471035, 7505784, 7848360, 8131266, 8150220, 8275608, 8633196, 8829405, 8870472, 8965242, 9034740, 9382230, 9592440, 9780264, 9961380, 10344510, 10595286, 10791495, 10841688, 11088090, 11284920, 11772540, 11953656, 12196899, 12225330, 12413412, 12509640, 12949794, 13447863, 13552110, 13792680, 14127048, 14388660, 14670396, 14784120, 14942070, 15516765, 15892929, 16262532, 16300440, 17266392, 17658810, 17930484, 18069480, 18337995, 18764460, 19424691, 19922760, 20328165, 20689020, 21190572, 21582990, 22176180, 22413105, 23545080, 24393798, 24450660, 24826824, 25899588, 26488215, 26895726, 27104220, 28777320, 29340792, 29884140, 31033530, 31785858, 32374485, 32525064, 35317620, 35860968, 36675990, 37528920, 38849382, 40343589, 40656330, 41378040, 42381144, 43165980, 44352360, 44826210, 47678787, 48787596, 48901320, 51799176, 52976430, 53791452, 54208440, 58274073, 59768280, 60984495, 62067060, 63571716, 64748970, 67239315, 70635240, 73351980, 77698764, 79464645, 80687178, 81312660, 86331960, 89652420, 95357574, 97123455, 97575192, 105952860, 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約数ペア:

[(1, 20978666280), (2, 10489333140), (3, 6992888760), (4, 5244666570), (5, 4195733256), (6, 3496444380), (8, 2622333285), (9, 2330962920), (10, 2097866628), (11, 1907151480), (12, 1748222190), (13, 1613743560), (15, 1398577752), (18, 1165481460), (20, 1048933314), (22, 953575740), (24, 874111095), (26, 806871780), (27, 776987640), (30, 699288876), (33, 635717160), (36, 582740730), (39, 537914520), (40, 524466657), (43, 487875960), (44, 476787870), (45, 466192584), (52, 403435890), (54, 388493820), (55, 381430296), (60, 349644438), (65, 322748712), (66, 317858580), (72, 291370365), (78, 268957260), (81, 258995880), (86, 243937980), (88, 238393935), (90, 233096292), (99, 211905720), (104, 201717945), (108, 194246910), (110, 190715148), (117, 179304840), (120, 174822219), (129, 162625320), (130, 161374356), (132, 158929290), (135, 155397528), (143, 146703960), (156, 134478630), (162, 129497940), (165, 127143432), (169, 124134120), (172, 121968990), (180, 116548146), (195, 107582904), (198, 105952860), (215, 97575192), (216, 97123455), (220, 95357574), (234, 89652420), (243, 86331960), (258, 81312660), (260, 80687178), (264, 79464645), (270, 77698764), (286, 73351980), (297, 70635240), (312, 67239315), (324, 64748970), (330, 63571716), (338, 62067060), (344, 60984495), (351, 59768280), (360, 58274073), (387, 54208440), (390, 53791452), (396, 52976430), (405, 51799176), (429, 48901320), (430, 48787596), (440, 47678787), (468, 44826210), (473, 44352360), (486, 43165980), (495, 42381144), (507, 41378040), (516, 40656330), (520, 40343589), (540, 38849382), (559, 37528920), (572, 36675990), (585, 35860968), (594, 35317620), (645, 32525064), (648, 32374485), (660, 31785858), (676, 31033530), (702, 29884140), (715, 29340792), (729, 28777320), (774, 27104220), (780, 26895726), (792, 26488215), (810, 25899588), (845, 24826824), (858, 24450660), (860, 24393798), (891, 23545080), (936, 22413105), (946, 22176180), (972, 21582990), (990, 21190572), (1014, 20689020), (1032, 20328165), (1053, 19922760), (1080, 19424691), (1118, 18764460), (1144, 18337995), (1161, 18069480), (1170, 17930484), (1188, 17658810), (1215, 17266392), (1287, 16300440), (1290, 16262532), (1320, 15892929), (1352, 15516765), (1404, 14942070), (1419, 14784120), (1430, 14670396), (1458, 14388660), (1485, 14127048), (1521, 13792680), (1548, 13552110), (1560, 13447863), (1620, 12949794), (1677, 12509640), (1690, 12413412), (1716, 12225330), (1720, 12196899), (1755, 11953656), (1782, 11772540), (1859, 11284920), (1892, 11088090), (1935, 10841688), (1944, 10791495), (1980, 10595286), (2028, 10344510), (2106, 9961380), (2145, 9780264), (2187, 9592440), (2236, 9382230), (2322, 9034740), (2340, 8965242), (2365, 8870472), (2376, 8829405), (2430, 8633196), (2535, 8275608), (2574, 8150220), (2580, 8131266), (2673, 7848360), (2795, 7505784), (2808, 7471035), (2838, 7392060), (2860, 7335198), (2916, 7194330), (2970, 7063524), (3042, 6896340), (3096, 6776055), (3159, 6640920), (3240, 6474897), (3354, 6254820), (3380, 6206706), (3432, 6112665), (3483, 6023160), (3510, 5976828), (3564, 5886270), (3645, 5755464), (3718, 5642460), (3784, 5544045), (3861, 5433480), (3870, 5420844), (3960, 5297643), (4056, 5172255), (4212, 4980690), (4257, 4928040), (4290, 4890132), (4374, 4796220), (4455, 4709016), (4472, 4691115), (4563, 4597560), (4644, 4517370), (4680, 4482621), (4730, 4435236), (4860, 4316598), (5031, 4169880), (5070, 4137804), (5148, 4075110), (5160, 4065633), (5265, 3984552), (5346, 3924180), (5577, 3761640), (5590, 3752892), (5676, 3696030), (5720, 3667599), (5805, 3613896), (5832, 3597165), (5940, 3531762), (6084, 3448170), (6149, 3411720), (6318, 3320460), (6435, 3260088), (6561, 3197480), (6708, 3127410), (6760, 3103353), (6966, 3011580), (7020, 2988414), (7095, 2956824), (7128, 2943135), (7267, 2886840), (7290, 2877732), (7436, 2821230), (7605, 2758536), (7722, 2716740), (7740, 2710422), (8019, 2616120), (8385, 2501928), (8424, 2490345), (8514, 2464020), (8580, 2445066), (8748, 2398110), (8910, 2354508), (9126, 2298780), (9288, 2258685), (9295, 2256984), (9460, 2217618), (9477, 2213640), (9720, 2158299), (10062, 2084940), (10140, 2068902), (10296, 2037555), (10449, 2007720), (10530, 1992276), (10692, 1962090), (10935, 1918488), (11154, 1880820), (11180, 1876446), (11352, 1848015), (11583, 1811160), (11610, 1806948), (11880, 1765881), (12168, 1724085), (12298, 1705860), (12636, 1660230), (12771, 1642680), (12870, 1630044), (13122, 1598740), (13365, 1569672), (13416, 1563705), (13689, 1532520), (13932, 1505790), (14040, 1494207), (14190, 1478412), (14534, 1443420), (14580, 1438866), (14872, 1410615), (15093, 1389960), (15210, 1379268), (15444, 1358370), (15480, 1355211), (15795, 1328184), (16038, 1308060), (16731, 1253880), (16770, 1250964), (17028, 1232010), (17160, 1222533), (17415, 1204632), (17496, 1199055), (17820, 1177254), (18252, 1149390), (18447, 1137240), (18590, 1128492), (18920, 1108809), (18954, 1106820), (19305, 1086696), (20124, 1042470), (20280, 1034451), (20898, 1003860), (21060, 996138), (21285, 985608), (21384, 981045), (21801, 962280), (21870, 959244), (22308, 940410), (22360, 938223), (22815, 919512), (23166, 905580), (23220, 903474), (24057, 872040), (24596, 852930), (25155, 833976), (25272, 830115), (25542, 821340), (25740, 815022), (26244, 799370), (26730, 784836), (27378, 766260), (27864, 752895), (27885, 752328), (28380, 739206), (28431, 737880), (29068, 721710), (29160, 719433), (30186, 694980), (30420, 689634), (30745, 682344), (30888, 679185), (31347, 669240), (31590, 664092), (32076, 654030), (32805, 639496), (33462, 626940), (33540, 625482), (34056, 616005), (34749, 603720), (34830, 602316), (35640, 588627), (36335, 577368), (36504, 574695), (36894, 568620), (37180, 564246), (37908, 553410), (38313, 547560), (38610, 543348), (40095, 523224), (40248, 521235), (41067, 510840), (41796, 501930), (42120, 498069), (42570, 492804), (43602, 481140), (43740, 479622), (44616, 470205), (45279, 463320), (45630, 459756), (46332, 452790), (46440, 451737), (47385, 442728), (48114, 436020), (49192, 426465), (50193, 417960), (50310, 416988), (51084, 410670), (51480, 407511), (52245, 401544), (52488, 399685), (53460, 392418), (54756, 383130), (55341, 379080), (55770, 376164), (56760, 369603), (56862, 368940), (57915, 362232), (58136, 360855), (60372, 347490), (60840, 344817), (61490, 341172), (62694, 334620), (63180, 332046), (63855, 328536), (64152, 327015), (65403, 320760), (65610, 319748), (66924, 313470), (67080, 312741), (68445, 306504), (69498, 301860), (69660, 301158), (72171, 290680), (72670, 288684), (73788, 284310), (74360, 282123), (75465, 277992), (75816, 276705), (76626, 273780), (77220, 271674), (79937, 262440), (80190, 261612), (82134, 255420), (83592, 250965), (83655, 250776), (85140, 246402), (85293, 245960), (87204, 240570), (87480, 239811), (90558, 231660), (91260, 229878), (92235, 227448), (92664, 226395), (94041, 223080), (94770, 221364), (96228, 218010), (100386, 208980), (100620, 208494), (102168, 205335), (104247, 201240), (104490, 200772), (106920, 196209), (109005, 192456), (109512, 191565), (110682, 189540), (111540, 188082), (113724, 184470), (114939, 182520), (115830, 181116), (120285, 174408), (120744, 173745), (122980, 170586), (123201, 170280), (125388, 167310), (126360, 166023), (127710, 164268), (130806, 160380), (131220, 159874), (133848, 156735), (135837, 154440), (136890, 153252), (138996, 150930), (139320, 150579), (142155, 147576), (144342, 145340)]