20405264880

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{541}}^1$

素因数の和:745

約数の個数: 640

約数和(自身を含む): 85630519296

約数和(自身を除く): 65225254416

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 16, 20, 21, 22, 24, 26, 28, 30, 33, 35, 39, 40, 42, 44, 48, 52, 55, 56, 60, 65, 66, 70, 77, 78, 80, 84, 88, 91, 104, 105, 110, 112, 120, 130, 132, 140, 143, 154, 156, 157, 165, 168, 176, 182, 195, 208, 210, 220, 231, 240, 260, 264, 273, 280, 286, 308, 312, 314, 330, 336, 364, 385, 390, 420, 429, 440, 455, 462, 471, 520, 528, 541, 546, 560, 572, 616, 624, 628, 660, 715, 728, 770, 780, 785, 840, 858, 880, 910, 924, 942, 1001, 1040, 1082, 1092, 1099, 1144, 1155, 1232, 1256, 1320, 1365, 1430, 1456, 1540, 1560, 1570, 1623, 1680, 1716, 1727, 1820, 1848, 1884, 2002, 2041, 2145, 2164, 2184, 2198, 2288, 2310, 2355, 2512, 2640, 2705, 2730, 2860, 3003, 3080, 3120, 3140, 3246, 3297, 3432, 3454, 3640, 3696, 3768, 3787, 4004, 4082, 4290, 4328, 4368, 4396, 4620, 4710, 5005, 5181, 5410, 5460, 5495, 5720, 5951, 6006, 6123, 6160, 6280, 6492, 6594, 6864, 6908, 7033, 7280, 7536, 7574, 8008, 8115, 8164, 8580, 8635, 8656, 8792, 9240, 9420, 10010, 10205, 10362, 10820, 10920, 10990, 11361, 11440, 11902, 12012, 12089, 12246, 12560, 12984, 13188, 13816, 14066, 14287, 15015, 15148, 16016, 16230, 16328, 16485, 17160, 17270, 17584, 17853, 18480, 18840, 18935, 20020, 20410, 20724, 21099, 21640, 21840, 21980, 22451, 22722, 23804, 24024, 24178, 24492, 25905, 25968, 26376, 27632, 28132, 28574, 29755, 30030, 30296, 30615, 32460, 32656, 32970, 34320, 34540, 35165, 35706, 36267, 37680, 37870, 40040, 40820, 41448, 41657, 42198, 42861, 43280, 43960, 44902, 45444, 47608, 48048, 48356, 48984, 49231, 51810, 52752, 56264, 56805, 57148, 59510, 60060, 60445, 60592, 61230, 64920, 65940, 67353, 69080, 70330, 71412, 71435, 72534, 75740, 77363, 80080, 81640, 82896, 83314, 84396, 84937, 85722, 87920, 89265, 89804, 90888, 95216, 96712, 97968, 98462, 103620, 105495, 112255, 112528, 113610, 114296, 119020, 120120, 120890, 122460, 124971, 129840, 131880, 134706, 138160, 140660, 142824, 142870, 145068, 147693, 151480, 154726, 157157, 163280, 166628, 168792, 169874, 171444, 178530, 179608, 181335, 181776, 193424, 196924, 207240, 208285, 210990, 214305, 224510, 227220, 228592, 232089, 238040, 240240, 241780, 244920, 246155, 249942, 254811, 263760, 269412, 281320, 285648, 285740, 290136, 295386, 302960, 309452, 314314, 333256, 336765, 337584, 339748, 342888, 357060, 359216, 362670, 386815, 393848, 414480, 416570, 421980, 424685, 428610, 449020, 454440, 464178, 471471, 476080, 483560, 489840, 492310, 499884, 509622, 538824, 541541, 562640, 571480, 580272, 590772, 594559, 618904, 624855, 628628, 666512, 673530, 679496, 685776, 714120, 725340, 738465, 773630, 785785, 787696, 833140, 843960, 849370, 857220, 898040, 908880, 928356, 934307, 942942, 967120, 984620, 999768, 1019244, 1077648, 1083082, 1104181, 1142960, 1160445, 1181544, 1189118, 1237808, 1249710, 1257256, 1274055, 1347060, 1358992, 1428240, 1450680, 1476930, 1547260, 1571570, 1624623, 1666280, 1687920, 1698740, 1714440, 1783677, 1796080, 1856712, 1868614, 1885884, 1969240, 1999536, 2038488, 2166164, 2208362, 2320890, 2357355, 2363088, 2378236, 2499420, 2514512, 2548110, 2694120, 2707705, 2802921, 2901360, 2953860, 2972795, 3094520, 3143140, 3249246, 3312543, 3332560, 3397480, 3428880, 3567354, 3713424, 3737228, 3771768, 3938480, 4076976, 4332328, 4416724, 4641780, 4671535, 4714710, 4756472, 4998840, 5096220, 5388240, 5415410, 5520905, 5605842, 5907720, 5945590, 6189040, 6286280, 6498492, 6540149, 6625086, 6794960, 7134708, 7474456, 7543536, 7729267, 8123115, 8664656, 8833448, 8918385, 9283560, 9343070, 9429420, 9512944, 9997680, 10192440, 10830820, 11041810, 11211684, 11815440, 11891180, 12145991, 12572560, 12996984, 13080298, 13250172, 14014605, 14269416, 14948912, 15458534, 16246230, 16562715, 17666896, 17836770, 18567120, 18686140, 18858840, 19620447, 20384880, 21661640, 22083620, 22423368, 23187801, 23782360, 24291982, 25993968, 26160596, 26500344, 28029210, 28538832, 30917068, 32492460, 32700745, 33125430, 35673540, 36437973, 37372280, 37717680, 38646335, 39240894, 43323280, 44167240, 44846736, 46375602, 47564720, 48583964, 52321192, 53000688, 56058420, 60729955, 61834136, 64984920, 65401490, 66250860, 71347080, 72875946, 74744560, 77292670, 78481788, 85021937, 88334480, 92751204, 97167928, 98102235, 104642384, 112116840, 115939005, 121459910, 123668272, 129969840, 130802980, 132501720, 142694160, 145751892, 154585340, 156963576, 170043874, 182189865, 185502408, 194335856, 196204470, 224233680, 231878010, 242919820, 255065811, 261605960, 265003440, 291503784, 309170680, 313927152, 340087748, 364379730, 371004816, 392408940, 425109685, 463756020, 485839640, 510131622, 523211920, 583007568, 618341360, 680175496, 728759460, 784817880, 850219370, 927512040, 971679280, 1020263244, 1275329055, 1360350992, 1457518920, 1569635760, 1700438740, 1855024080, 2040526488, 2550658110, 2915037840, 3400877480, 4081052976, 5101316220, 6801754960, 10202632440, 20405264880]

約数ペア:

[(1, 20405264880), (2, 10202632440), (3, 6801754960), (4, 5101316220), (5, 4081052976), (6, 3400877480), (7, 2915037840), (8, 2550658110), (10, 2040526488), (11, 1855024080), (12, 1700438740), (13, 1569635760), (14, 1457518920), (15, 1360350992), (16, 1275329055), (20, 1020263244), (21, 971679280), (22, 927512040), (24, 850219370), (26, 784817880), (28, 728759460), (30, 680175496), (33, 618341360), (35, 583007568), (39, 523211920), (40, 510131622), (42, 485839640), (44, 463756020), (48, 425109685), (52, 392408940), (55, 371004816), (56, 364379730), (60, 340087748), (65, 313927152), (66, 309170680), (70, 291503784), (77, 265003440), (78, 261605960), (80, 255065811), (84, 242919820), (88, 231878010), (91, 224233680), (104, 196204470), (105, 194335856), (110, 185502408), (112, 182189865), (120, 170043874), (130, 156963576), (132, 154585340), (140, 145751892), (143, 142694160), (154, 132501720), (156, 130802980), (157, 129969840), (165, 123668272), (168, 121459910), (176, 115939005), (182, 112116840), (195, 104642384), (208, 98102235), (210, 97167928), (220, 92751204), (231, 88334480), (240, 85021937), (260, 78481788), (264, 77292670), (273, 74744560), (280, 72875946), (286, 71347080), (308, 66250860), (312, 65401490), (314, 64984920), (330, 61834136), (336, 60729955), (364, 56058420), (385, 53000688), (390, 52321192), (420, 48583964), (429, 47564720), (440, 46375602), (455, 44846736), (462, 44167240), (471, 43323280), (520, 39240894), (528, 38646335), (541, 37717680), (546, 37372280), (560, 36437973), (572, 35673540), (616, 33125430), (624, 32700745), (628, 32492460), (660, 30917068), (715, 28538832), (728, 28029210), (770, 26500344), (780, 26160596), (785, 25993968), (840, 24291982), (858, 23782360), (880, 23187801), (910, 22423368), (924, 22083620), (942, 21661640), (1001, 20384880), (1040, 19620447), (1082, 18858840), (1092, 18686140), (1099, 18567120), (1144, 17836770), (1155, 17666896), (1232, 16562715), (1256, 16246230), (1320, 15458534), (1365, 14948912), (1430, 14269416), (1456, 14014605), (1540, 13250172), (1560, 13080298), (1570, 12996984), (1623, 12572560), (1680, 12145991), (1716, 11891180), (1727, 11815440), (1820, 11211684), (1848, 11041810), (1884, 10830820), (2002, 10192440), (2041, 9997680), (2145, 9512944), (2164, 9429420), (2184, 9343070), (2198, 9283560), (2288, 8918385), (2310, 8833448), (2355, 8664656), (2512, 8123115), (2640, 7729267), (2705, 7543536), (2730, 7474456), (2860, 7134708), (3003, 6794960), (3080, 6625086), (3120, 6540149), (3140, 6498492), (3246, 6286280), (3297, 6189040), (3432, 5945590), (3454, 5907720), (3640, 5605842), (3696, 5520905), (3768, 5415410), (3787, 5388240), (4004, 5096220), (4082, 4998840), (4290, 4756472), (4328, 4714710), (4368, 4671535), (4396, 4641780), (4620, 4416724), (4710, 4332328), (5005, 4076976), (5181, 3938480), (5410, 3771768), (5460, 3737228), (5495, 3713424), (5720, 3567354), (5951, 3428880), (6006, 3397480), (6123, 3332560), (6160, 3312543), (6280, 3249246), (6492, 3143140), (6594, 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(24024, 849370), (24178, 843960), (24492, 833140), (25905, 787696), (25968, 785785), (26376, 773630), (27632, 738465), (28132, 725340), (28574, 714120), (29755, 685776), (30030, 679496), (30296, 673530), (30615, 666512), (32460, 628628), (32656, 624855), (32970, 618904), (34320, 594559), (34540, 590772), (35165, 580272), (35706, 571480), (36267, 562640), (37680, 541541), (37870, 538824), (40040, 509622), (40820, 499884), (41448, 492310), (41657, 489840), (42198, 483560), (42861, 476080), (43280, 471471), (43960, 464178), (44902, 454440), (45444, 449020), (47608, 428610), (48048, 424685), (48356, 421980), (48984, 416570), (49231, 414480), (51810, 393848), (52752, 386815), (56264, 362670), (56805, 359216), (57148, 357060), (59510, 342888), (60060, 339748), (60445, 337584), (60592, 336765), (61230, 333256), (64920, 314314), (65940, 309452), (67353, 302960), (69080, 295386), (70330, 290136), (71412, 285740), (71435, 285648), (72534, 281320), (75740, 269412), (77363, 263760), (80080, 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