20881421568

素因数分解:

$2^8\times 3^5\times 7^1\times {\mathrm{79}}^1\times {\mathrm{607}}^1$

素因数の和:724

約数の個数: 432

約数和(自身を含む): 72377876480

約数和(自身を除く): 51496454912

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 54, 56, 63, 64, 72, 79, 81, 84, 96, 108, 112, 126, 128, 144, 158, 162, 168, 189, 192, 216, 224, 237, 243, 252, 256, 288, 316, 324, 336, 378, 384, 432, 448, 474, 486, 504, 553, 567, 576, 607, 632, 648, 672, 711, 756, 768, 864, 896, 948, 972, 1008, 1106, 1134, 1152, 1214, 1264, 1296, 1344, 1422, 1512, 1659, 1701, 1728, 1792, 1821, 1896, 1944, 2016, 2133, 2212, 2268, 2304, 2428, 2528, 2592, 2688, 2844, 3024, 3318, 3402, 3456, 3642, 3792, 3888, 4032, 4249, 4266, 4424, 4536, 4856, 4977, 5056, 5184, 5376, 5463, 5688, 6048, 6399, 6636, 6804, 6912, 7284, 7584, 7776, 8064, 8498, 8532, 8848, 9072, 9712, 9954, 10112, 10368, 10926, 11376, 12096, 12747, 12798, 13272, 13608, 14568, 14931, 15168, 15552, 16128, 16389, 16996, 17064, 17696, 18144, 19197, 19424, 19908, 20224, 20736, 21852, 22752, 24192, 25494, 25596, 26544, 27216, 29136, 29862, 30336, 31104, 32778, 33992, 34128, 35392, 36288, 38241, 38394, 38848, 39816, 43704, 44793, 45504, 47953, 48384, 49167, 50988, 51192, 53088, 54432, 58272, 59724, 60672, 62208, 65556, 67984, 68256, 70784, 72576, 76482, 76788, 77696, 79632, 87408, 89586, 91008, 95906, 98334, 101976, 102384, 106176, 108864, 114723, 116544, 119448, 131112, 134379, 135968, 136512, 141568, 143859, 145152, 147501, 152964, 153576, 155392, 159264, 174816, 179172, 182016, 191812, 196668, 203952, 204768, 212352, 217728, 229446, 233088, 238896, 262224, 268758, 271936, 273024, 287718, 295002, 305928, 307152, 318528, 335671, 344169, 349632, 358344, 383624, 393336, 407904, 409536, 424704, 431577, 435456, 458892, 466176, 477792, 524448, 537516, 543872, 546048, 575436, 590004, 611856, 614304, 637056, 671342, 688338, 699264, 716688, 767248, 786672, 815808, 819072, 863154, 917784, 955584, 1007013, 1032507, 1048896, 1075032, 1087744, 1150872, 1180008, 1223712, 1228608, 1274112, 1294731, 1342684, 1376676, 1398528, 1433376, 1534496, 1573344, 1631616, 1638144, 1726308, 1835568, 1911168, 2014026, 2065014, 2097792, 2150064, 2301744, 2360016, 2447424, 2457216, 2589462, 2685368, 2753352, 2866752, 3021039, 3068992, 3146688, 3263232, 3452616, 3671136, 3822336, 3884193, 4028052, 4130028, 4195584, 4300128, 4603488, 4720032, 4894848, 4914432, 5178924, 5370736, 5506704, 5733504, 6042078, 6137984, 6293376, 6905232, 7342272, 7768386, 8056104, 8260056, 8600256, 9063117, 9206976, 9440064, 9789696, 10357848, 10741472, 11013408, 11467008, 11652579, 12084156, 12275968, 12586752, 13810464, 14684544, 15536772, 16112208, 16520112, 17200512, 18126234, 18413952, 18880128, 20715696, 21482944, 22026816, 23305158, 24168312, 27189351, 27620928, 29369088, 31073544, 32224416, 33040224, 34401024, 36252468, 36827904, 37760256, 41431392, 42965888, 44053632, 46610316, 48336624, 54378702, 55241856, 62147088, 64448832, 66080448, 72504936, 81568053, 82862784, 85931776, 88107264, 93220632, 96673248, 108757404, 110483712, 124294176, 128897664, 132160896, 145009872, 163136106, 165725568, 186441264, 193346496, 217514808, 248588352, 257795328, 264321792, 290019744, 326272212, 331451136, 372882528, 386692992, 435029616, 497176704, 580039488, 652544424, 745765056, 773385984, 870059232, 994353408, 1160078976, 1305088848, 1491530112, 1740118464, 2320157952, 2610177696, 2983060224, 3480236928, 5220355392, 6960473856, 10440710784, 20881421568]

約数ペア:

[(1, 20881421568), (2, 10440710784), (3, 6960473856), (4, 5220355392), (6, 3480236928), (7, 2983060224), (8, 2610177696), (9, 2320157952), (12, 1740118464), (14, 1491530112), (16, 1305088848), (18, 1160078976), (21, 994353408), (24, 870059232), (27, 773385984), (28, 745765056), (32, 652544424), (36, 580039488), (42, 497176704), (48, 435029616), (54, 386692992), (56, 372882528), (63, 331451136), (64, 326272212), (72, 290019744), (79, 264321792), (81, 257795328), (84, 248588352), (96, 217514808), (108, 193346496), (112, 186441264), (126, 165725568), (128, 163136106), (144, 145009872), (158, 132160896), (162, 128897664), (168, 124294176), (189, 110483712), (192, 108757404), (216, 96673248), (224, 93220632), (237, 88107264), (243, 85931776), (252, 82862784), (256, 81568053), (288, 72504936), (316, 66080448), (324, 64448832), (336, 62147088), (378, 55241856), (384, 54378702), (432, 48336624), (448, 46610316), (474, 44053632), (486, 42965888), (504, 41431392), (553, 37760256), (567, 36827904), (576, 36252468), (607, 34401024), (632, 33040224), (648, 32224416), (672, 31073544), (711, 29369088), (756, 27620928), (768, 27189351), (864, 24168312), (896, 23305158), (948, 22026816), (972, 21482944), (1008, 20715696), (1106, 18880128), (1134, 18413952), (1152, 18126234), (1214, 17200512), (1264, 16520112), (1296, 16112208), (1344, 15536772), (1422, 14684544), (1512, 13810464), (1659, 12586752), (1701, 12275968), (1728, 12084156), (1792, 11652579), (1821, 11467008), (1896, 11013408), (1944, 10741472), (2016, 10357848), (2133, 9789696), (2212, 9440064), (2268, 9206976), (2304, 9063117), (2428, 8600256), (2528, 8260056), (2592, 8056104), (2688, 7768386), (2844, 7342272), (3024, 6905232), (3318, 6293376), (3402, 6137984), (3456, 6042078), (3642, 5733504), (3792, 5506704), (3888, 5370736), (4032, 5178924), (4249, 4914432), (4266, 4894848), (4424, 4720032), (4536, 4603488), (4856, 4300128), (4977, 4195584), (5056, 4130028), (5184, 4028052), (5376, 3884193), (5463, 3822336), (5688, 3671136), (6048, 3452616), (6399, 3263232), (6636, 3146688), (6804, 3068992), (6912, 3021039), (7284, 2866752), (7584, 2753352), (7776, 2685368), (8064, 2589462), (8498, 2457216), (8532, 2447424), (8848, 2360016), (9072, 2301744), (9712, 2150064), (9954, 2097792), (10112, 2065014), (10368, 2014026), (10926, 1911168), (11376, 1835568), (12096, 1726308), (12747, 1638144), (12798, 1631616), (13272, 1573344), (13608, 1534496), (14568, 1433376), (14931, 1398528), (15168, 1376676), (15552, 1342684), (16128, 1294731), (16389, 1274112), (16996, 1228608), (17064, 1223712), (17696, 1180008), (18144, 1150872), (19197, 1087744), (19424, 1075032), (19908, 1048896), (20224, 1032507), (20736, 1007013), (21852, 955584), (22752, 917784), (24192, 863154), (25494, 819072), (25596, 815808), (26544, 786672), (27216, 767248), (29136, 716688), (29862, 699264), (30336, 688338), (31104, 671342), (32778, 637056), (33992, 614304), (34128, 611856), (35392, 590004), (36288, 575436), (38241, 546048), (38394, 543872), (38848, 537516), (39816, 524448), (43704, 477792), (44793, 466176), (45504, 458892), (47953, 435456), (48384, 431577), (49167, 424704), (50988, 409536), (51192, 407904), (53088, 393336), (54432, 383624), (58272, 358344), (59724, 349632), (60672, 344169), (62208, 335671), (65556, 318528), (67984, 307152), (68256, 305928), (70784, 295002), (72576, 287718), (76482, 273024), (76788, 271936), (77696, 268758), (79632, 262224), (87408, 238896), (89586, 233088), (91008, 229446), (95906, 217728), (98334, 212352), (101976, 204768), (102384, 203952), (106176, 196668), (108864, 191812), (114723, 182016), (116544, 179172), (119448, 174816), (131112, 159264), (134379, 155392), (135968, 153576), (136512, 152964), (141568, 147501), (143859, 145152)]