21331690240

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{1259}}^1$

素因数の和:1379

約数の個数: 288

約数和(自身を含む): 61316075520

約数和(自身を除く): 39984385280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 61, 62, 64, 70, 80, 112, 122, 124, 128, 140, 155, 160, 217, 224, 244, 248, 256, 280, 305, 310, 320, 427, 434, 448, 488, 496, 560, 610, 620, 640, 854, 868, 896, 976, 992, 1085, 1120, 1220, 1240, 1259, 1280, 1708, 1736, 1792, 1891, 1952, 1984, 2135, 2170, 2240, 2440, 2480, 2518, 3416, 3472, 3782, 3904, 3968, 4270, 4340, 4480, 4880, 4960, 5036, 6295, 6832, 6944, 7564, 7808, 7936, 8540, 8680, 8813, 8960, 9455, 9760, 9920, 10072, 12590, 13237, 13664, 13888, 15128, 15616, 17080, 17360, 17626, 18910, 19520, 19840, 20144, 25180, 26474, 27328, 27776, 30256, 34160, 34720, 35252, 37820, 39029, 39040, 39680, 40288, 44065, 50360, 52948, 54656, 55552, 60512, 66185, 68320, 69440, 70504, 75640, 76799, 78058, 78080, 80576, 88130, 100720, 105896, 109312, 121024, 132370, 136640, 138880, 141008, 151280, 153598, 156116, 161152, 176260, 195145, 201440, 211792, 242048, 264740, 273203, 273280, 277760, 282016, 302560, 307196, 312232, 322304, 352520, 383995, 390290, 402880, 423584, 484096, 529480, 537593, 546406, 546560, 564032, 605120, 614392, 624464, 705040, 767990, 780580, 805760, 847168, 1058960, 1075186, 1092812, 1128064, 1210240, 1228784, 1248928, 1366015, 1410080, 1535980, 1561160, 1611520, 1694336, 2117920, 2150372, 2185624, 2256128, 2380769, 2420480, 2457568, 2497856, 2687965, 2732030, 2820160, 3071960, 3122320, 3388672, 4235840, 4300744, 4371248, 4761538, 4915136, 4995712, 5375930, 5464060, 5640320, 6143920, 6244640, 8471680, 8601488, 8742496, 9523076, 9830272, 9991424, 10751860, 10928120, 11280640, 11903845, 12287840, 12489280, 16665383, 16943360, 17202976, 17484992, 19046152, 19660544, 21503720, 21856240, 23807690, 24575680, 24978560, 33330766, 34405952, 34969984, 38092304, 43007440, 43712480, 47615380, 49151360, 49957120, 66661532, 68811904, 69939968, 76184608, 83326915, 86014880, 87424960, 95230760, 98302720, 133323064, 137623808, 152369216, 166653830, 172029760, 174849920, 190461520, 266646128, 304738432, 333307660, 344059520, 349699840, 380923040, 533292256, 609476864, 666615320, 688119040, 761846080, 1066584512, 1333230640, 1523692160, 2133169024, 2666461280, 3047384320, 4266338048, 5332922560, 10665845120, 21331690240]

約数ペア:

[(1, 21331690240), (2, 10665845120), (4, 5332922560), (5, 4266338048), (7, 3047384320), (8, 2666461280), (10, 2133169024), (14, 1523692160), (16, 1333230640), (20, 1066584512), (28, 761846080), (31, 688119040), (32, 666615320), (35, 609476864), (40, 533292256), (56, 380923040), (61, 349699840), (62, 344059520), (64, 333307660), (70, 304738432), (80, 266646128), (112, 190461520), (122, 174849920), (124, 172029760), (128, 166653830), (140, 152369216), (155, 137623808), (160, 133323064), (217, 98302720), (224, 95230760), (244, 87424960), (248, 86014880), (256, 83326915), (280, 76184608), (305, 69939968), (310, 68811904), (320, 66661532), (427, 49957120), (434, 49151360), (448, 47615380), (488, 43712480), (496, 43007440), (560, 38092304), (610, 34969984), (620, 34405952), (640, 33330766), (854, 24978560), (868, 24575680), (896, 23807690), (976, 21856240), (992, 21503720), (1085, 19660544), (1120, 19046152), (1220, 17484992), (1240, 17202976), (1259, 16943360), (1280, 16665383), (1708, 12489280), (1736, 12287840), (1792, 11903845), (1891, 11280640), (1952, 10928120), (1984, 10751860), (2135, 9991424), (2170, 9830272), (2240, 9523076), (2440, 8742496), (2480, 8601488), (2518, 8471680), (3416, 6244640), (3472, 6143920), (3782, 5640320), (3904, 5464060), (3968, 5375930), (4270, 4995712), (4340, 4915136), (4480, 4761538), (4880, 4371248), (4960, 4300744), (5036, 4235840), (6295, 3388672), (6832, 3122320), (6944, 3071960), (7564, 2820160), (7808, 2732030), (7936, 2687965), (8540, 2497856), (8680, 2457568), (8813, 2420480), (8960, 2380769), (9455, 2256128), (9760, 2185624), (9920, 2150372), (10072, 2117920), (12590, 1694336), (13237, 1611520), (13664, 1561160), (13888, 1535980), (15128, 1410080), (15616, 1366015), (17080, 1248928), (17360, 1228784), (17626, 1210240), (18910, 1128064), (19520, 1092812), (19840, 1075186), (20144, 1058960), (25180, 847168), (26474, 805760), (27328, 780580), (27776, 767990), (30256, 705040), (34160, 624464), (34720, 614392), (35252, 605120), (37820, 564032), (39029, 546560), (39040, 546406), (39680, 537593), (40288, 529480), (44065, 484096), (50360, 423584), (52948, 402880), (54656, 390290), (55552, 383995), (60512, 352520), (66185, 322304), (68320, 312232), (69440, 307196), (70504, 302560), (75640, 282016), (76799, 277760), (78058, 273280), (78080, 273203), (80576, 264740), (88130, 242048), (100720, 211792), (105896, 201440), (109312, 195145), (121024, 176260), (132370, 161152), (136640, 156116), (138880, 153598), (141008, 151280)]