21681003120

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{307}}^1\times {\mathrm{331}}^1$

素因数の和:788

約数の個数: 320

約数和(自身を含む): 77904347136

約数和(自身を除く): 56223344016

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 127, 140, 168, 210, 240, 254, 280, 307, 331, 336, 381, 420, 508, 560, 614, 635, 662, 762, 840, 889, 921, 993, 1016, 1228, 1270, 1324, 1524, 1535, 1655, 1680, 1778, 1842, 1905, 1986, 2032, 2149, 2317, 2456, 2540, 2648, 2667, 3048, 3070, 3310, 3556, 3684, 3810, 3972, 4298, 4445, 4605, 4634, 4912, 4965, 5080, 5296, 5334, 6096, 6140, 6447, 6620, 6951, 7112, 7368, 7620, 7944, 8596, 8890, 9210, 9268, 9930, 10160, 10668, 10745, 11585, 12280, 12894, 13240, 13335, 13902, 14224, 14736, 15240, 15888, 17192, 17780, 18420, 18536, 19860, 21336, 21490, 23170, 24560, 25788, 26480, 26670, 27804, 30480, 32235, 34384, 34755, 35560, 36840, 37072, 38989, 39720, 42037, 42672, 42980, 46340, 51576, 53340, 55608, 64470, 69510, 71120, 73680, 77978, 79440, 84074, 85960, 92680, 101617, 103152, 106680, 111216, 116967, 126111, 128940, 139020, 155956, 168148, 171920, 185360, 194945, 203234, 210185, 213360, 233934, 252222, 257880, 272923, 278040, 294259, 304851, 311912, 336296, 389890, 406468, 420370, 467868, 504444, 508085, 515760, 545846, 556080, 584835, 588518, 609702, 623824, 630555, 672592, 711319, 779780, 812936, 818769, 840740, 882777, 935736, 1008888, 1016170, 1091692, 1169670, 1177036, 1219404, 1261110, 1364615, 1422638, 1471295, 1524255, 1559560, 1625872, 1637538, 1681480, 1765554, 1871472, 2017776, 2032340, 2133957, 2183384, 2339340, 2354072, 2438808, 2522220, 2729230, 2845276, 2942590, 3048510, 3119120, 3275076, 3362960, 3531108, 3556595, 4064680, 4093845, 4267914, 4366768, 4413885, 4678680, 4708144, 4877616, 5044440, 5458460, 5690552, 5885180, 6097020, 6550152, 7062216, 7113190, 8129360, 8187690, 8535828, 8827770, 9357360, 10088880, 10669785, 10916920, 11381104, 11770360, 12194040, 12905359, 13100304, 14124432, 14226380, 16375380, 17071656, 17655540, 21339570, 21833840, 23540720, 24388080, 25810718, 28452760, 32750760, 34143312, 35311080, 38716077, 42679140, 51621436, 56905520, 64526795, 65501520, 70622160, 77432154, 85358280, 90337513, 103242872, 129053590, 154864308, 170716560, 180675026, 193580385, 206485744, 258107180, 271012539, 309728616, 361350052, 387160770, 451687565, 516214360, 542025078, 619457232, 722700104, 774321540, 903375130, 1032428720, 1084050156, 1355062695, 1445400208, 1548643080, 1806750260, 2168100312, 2710125390, 3097286160, 3613500520, 4336200624, 5420250780, 7227001040, 10840501560, 21681003120]

約数ペア:

[(1, 21681003120), (2, 10840501560), (3, 7227001040), (4, 5420250780), (5, 4336200624), (6, 3613500520), (7, 3097286160), (8, 2710125390), (10, 2168100312), (12, 1806750260), (14, 1548643080), (15, 1445400208), (16, 1355062695), (20, 1084050156), (21, 1032428720), (24, 903375130), (28, 774321540), (30, 722700104), (35, 619457232), (40, 542025078), (42, 516214360), (48, 451687565), (56, 387160770), (60, 361350052), (70, 309728616), (80, 271012539), (84, 258107180), (105, 206485744), (112, 193580385), (120, 180675026), (127, 170716560), (140, 154864308), (168, 129053590), (210, 103242872), (240, 90337513), (254, 85358280), (280, 77432154), (307, 70622160), (331, 65501520), (336, 64526795), (381, 56905520), (420, 51621436), (508, 42679140), (560, 38716077), (614, 35311080), (635, 34143312), (662, 32750760), (762, 28452760), (840, 25810718), (889, 24388080), (921, 23540720), (993, 21833840), (1016, 21339570), (1228, 17655540), (1270, 17071656), (1324, 16375380), (1524, 14226380), (1535, 14124432), (1655, 13100304), (1680, 12905359), (1778, 12194040), (1842, 11770360), (1905, 11381104), (1986, 10916920), (2032, 10669785), (2149, 10088880), (2317, 9357360), (2456, 8827770), (2540, 8535828), (2648, 8187690), (2667, 8129360), (3048, 7113190), (3070, 7062216), (3310, 6550152), (3556, 6097020), (3684, 5885180), (3810, 5690552), (3972, 5458460), (4298, 5044440), (4445, 4877616), (4605, 4708144), (4634, 4678680), (4912, 4413885), (4965, 4366768), (5080, 4267914), (5296, 4093845), (5334, 4064680), (6096, 3556595), (6140, 3531108), (6447, 3362960), (6620, 3275076), (6951, 3119120), (7112, 3048510), (7368, 2942590), (7620, 2845276), (7944, 2729230), (8596, 2522220), (8890, 2438808), (9210, 2354072), (9268, 2339340), (9930, 2183384), (10160, 2133957), (10668, 2032340), (10745, 2017776), (11585, 1871472), (12280, 1765554), (12894, 1681480), (13240, 1637538), (13335, 1625872), (13902, 1559560), (14224, 1524255), (14736, 1471295), (15240, 1422638), (15888, 1364615), (17192, 1261110), (17780, 1219404), (18420, 1177036), (18536, 1169670), (19860, 1091692), (21336, 1016170), (21490, 1008888), (23170, 935736), (24560, 882777), (25788, 840740), (26480, 818769), (26670, 812936), (27804, 779780), (30480, 711319), (32235, 672592), (34384, 630555), (34755, 623824), (35560, 609702), (36840, 588518), (37072, 584835), (38989, 556080), (39720, 545846), (42037, 515760), (42672, 508085), (42980, 504444), (46340, 467868), (51576, 420370), (53340, 406468), (55608, 389890), (64470, 336296), (69510, 311912), (71120, 304851), (73680, 294259), (77978, 278040), (79440, 272923), (84074, 257880), (85960, 252222), (92680, 233934), (101617, 213360), (103152, 210185), (106680, 203234), (111216, 194945), (116967, 185360), (126111, 171920), (128940, 168148), (139020, 155956)]