21780209920

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:246

約数の個数: 432

約数和(自身を含む): 63316971648

約数和(自身を除く): 41536761728

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 67, 70, 71, 73, 80, 98, 112, 128, 134, 140, 142, 146, 160, 196, 224, 245, 256, 268, 280, 284, 292, 320, 335, 355, 365, 392, 448, 469, 490, 497, 511, 536, 560, 568, 584, 640, 670, 710, 730, 784, 896, 938, 980, 994, 1022, 1072, 1120, 1136, 1168, 1280, 1340, 1420, 1460, 1568, 1792, 1876, 1960, 1988, 2044, 2144, 2240, 2272, 2336, 2345, 2485, 2555, 2680, 2840, 2920, 3136, 3283, 3479, 3577, 3752, 3920, 3976, 4088, 4288, 4480, 4544, 4672, 4690, 4757, 4891, 4970, 5110, 5183, 5360, 5680, 5840, 6272, 6566, 6958, 7154, 7504, 7840, 7952, 8176, 8576, 8960, 9088, 9344, 9380, 9514, 9782, 9940, 10220, 10366, 10720, 11360, 11680, 12544, 13132, 13916, 14308, 15008, 15680, 15904, 16352, 16415, 17152, 17395, 17885, 18176, 18688, 18760, 19028, 19564, 19880, 20440, 20732, 21440, 22720, 23360, 23785, 24455, 25915, 26264, 27832, 28616, 30016, 31360, 31808, 32704, 32830, 33299, 34237, 34790, 35770, 36281, 37520, 38056, 39128, 39760, 40880, 41464, 42880, 45440, 46720, 47570, 48910, 51830, 52528, 55664, 57232, 60032, 62720, 63616, 65408, 65660, 66598, 68474, 69580, 71540, 72562, 75040, 76112, 78256, 79520, 81760, 82928, 85760, 90880, 93440, 95140, 97820, 103660, 105056, 111328, 114464, 120064, 127232, 130816, 131320, 133196, 136948, 139160, 143080, 145124, 150080, 152224, 156512, 159040, 163520, 165856, 166495, 171185, 181405, 190280, 195640, 207320, 210112, 222656, 228928, 233093, 239659, 253967, 262640, 266392, 273896, 278320, 286160, 290248, 300160, 304448, 313024, 318080, 327040, 331712, 332990, 342370, 347261, 362810, 380560, 391280, 414640, 420224, 445312, 457856, 466186, 479318, 507934, 525280, 532784, 547792, 556640, 572320, 580496, 600320, 608896, 626048, 636160, 654080, 663424, 665980, 684740, 694522, 725620, 761120, 782560, 829280, 840448, 890624, 915712, 932372, 958636, 1015868, 1050560, 1065568, 1095584, 1113280, 1144640, 1160992, 1165465, 1198295, 1217792, 1252096, 1269835, 1326848, 1331960, 1369480, 1389044, 1451240, 1522240, 1565120, 1658560, 1736305, 1864744, 1917272, 2031736, 2101120, 2131136, 2191168, 2226560, 2289280, 2321984, 2330930, 2396590, 2430827, 2539670, 2663920, 2738960, 2778088, 2902480, 3044480, 3130240, 3317120, 3472610, 3729488, 3834544, 4063472, 4202240, 4262272, 4382336, 4453120, 4578560, 4643968, 4661860, 4793180, 4861654, 5079340, 5327840, 5477920, 5556176, 5804960, 6088960, 6260480, 6634240, 6945220, 7458976, 7669088, 8126944, 8524544, 8764672, 9287936, 9323720, 9586360, 9723308, 10158680, 10655680, 10955840, 11112352, 11609920, 12154135, 13890440, 14917952, 15338176, 16253888, 17015789, 18647440, 19172720, 19446616, 20317360, 21311360, 21911680, 22224704, 23219840, 24308270, 27780880, 29835904, 30676352, 32507776, 34031578, 37294880, 38345440, 38893232, 40634720, 42622720, 43823360, 44449408, 46439680, 48616540, 55561760, 59671808, 61352704, 65015552, 68063156, 74589760, 76690880, 77786464, 81269440, 85078945, 88898816, 97233080, 111123520, 136126312, 149179520, 153381760, 155572928, 162538880, 170157890, 194466160, 222247040, 272252624, 298359040, 306763520, 311145856, 325077760, 340315780, 388932320, 444494080, 544505248, 622291712, 680631560, 777864640, 1089010496, 1361263120, 1555729280, 2178020992, 2722526240, 3111458560, 4356041984, 5445052480, 10890104960, 21780209920]

約数ペア:

[(1, 21780209920), (2, 10890104960), (4, 5445052480), (5, 4356041984), (7, 3111458560), (8, 2722526240), (10, 2178020992), (14, 1555729280), (16, 1361263120), (20, 1089010496), (28, 777864640), (32, 680631560), (35, 622291712), (40, 544505248), (49, 444494080), (56, 388932320), (64, 340315780), (67, 325077760), (70, 311145856), (71, 306763520), (73, 298359040), (80, 272252624), (98, 222247040), (112, 194466160), (128, 170157890), (134, 162538880), (140, 155572928), (142, 153381760), (146, 149179520), (160, 136126312), (196, 111123520), (224, 97233080), (245, 88898816), (256, 85078945), (268, 81269440), (280, 77786464), (284, 76690880), (292, 74589760), (320, 68063156), (335, 65015552), (355, 61352704), (365, 59671808), (392, 55561760), (448, 48616540), (469, 46439680), (490, 44449408), (497, 43823360), (511, 42622720), (536, 40634720), (560, 38893232), (568, 38345440), (584, 37294880), (640, 34031578), (670, 32507776), (710, 30676352), (730, 29835904), (784, 27780880), (896, 24308270), (938, 23219840), (980, 22224704), (994, 21911680), (1022, 21311360), (1072, 20317360), (1120, 19446616), (1136, 19172720), (1168, 18647440), (1280, 17015789), (1340, 16253888), (1420, 15338176), (1460, 14917952), (1568, 13890440), (1792, 12154135), (1876, 11609920), (1960, 11112352), (1988, 10955840), (2044, 10655680), (2144, 10158680), (2240, 9723308), (2272, 9586360), (2336, 9323720), (2345, 9287936), (2485, 8764672), (2555, 8524544), (2680, 8126944), (2840, 7669088), (2920, 7458976), (3136, 6945220), (3283, 6634240), (3479, 6260480), (3577, 6088960), (3752, 5804960), (3920, 5556176), (3976, 5477920), (4088, 5327840), (4288, 5079340), (4480, 4861654), (4544, 4793180), (4672, 4661860), (4690, 4643968), (4757, 4578560), (4891, 4453120), (4970, 4382336), (5110, 4262272), (5183, 4202240), (5360, 4063472), (5680, 3834544), (5840, 3729488), (6272, 3472610), (6566, 3317120), (6958, 3130240), (7154, 3044480), (7504, 2902480), (7840, 2778088), (7952, 2738960), (8176, 2663920), (8576, 2539670), (8960, 2430827), (9088, 2396590), (9344, 2330930), (9380, 2321984), (9514, 2289280), (9782, 2226560), (9940, 2191168), (10220, 2131136), (10366, 2101120), (10720, 2031736), (11360, 1917272), (11680, 1864744), (12544, 1736305), (13132, 1658560), (13916, 1565120), (14308, 1522240), (15008, 1451240), (15680, 1389044), (15904, 1369480), (16352, 1331960), (16415, 1326848), (17152, 1269835), (17395, 1252096), (17885, 1217792), (18176, 1198295), (18688, 1165465), (18760, 1160992), (19028, 1144640), (19564, 1113280), (19880, 1095584), (20440, 1065568), (20732, 1050560), (21440, 1015868), (22720, 958636), (23360, 932372), (23785, 915712), (24455, 890624), (25915, 840448), (26264, 829280), (27832, 782560), (28616, 761120), (30016, 725620), (31360, 694522), (31808, 684740), (32704, 665980), (32830, 663424), (33299, 654080), (34237, 636160), (34790, 626048), (35770, 608896), (36281, 600320), (37520, 580496), (38056, 572320), (39128, 556640), (39760, 547792), (40880, 532784), (41464, 525280), (42880, 507934), (45440, 479318), (46720, 466186), (47570, 457856), (48910, 445312), (51830, 420224), (52528, 414640), (55664, 391280), (57232, 380560), (60032, 362810), (62720, 347261), (63616, 342370), (65408, 332990), (65660, 331712), (66598, 327040), (68474, 318080), (69580, 313024), (71540, 304448), (72562, 300160), (75040, 290248), (76112, 286160), (78256, 278320), (79520, 273896), (81760, 266392), (82928, 262640), (85760, 253967), (90880, 239659), (93440, 233093), (95140, 228928), (97820, 222656), (103660, 210112), (105056, 207320), (111328, 195640), (114464, 190280), (120064, 181405), (127232, 171185), (130816, 166495), (131320, 165856), (133196, 163520), (136948, 159040), (139160, 156512), (143080, 152224), (145124, 150080)]