20948491440

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{197}}^1\times {\mathrm{1307}}^1$

素因数の和:1636

約数の個数: 240

約数和(自身を含む): 71389457568

約数和(自身を除く): 50440966128

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 113, 120, 144, 180, 197, 226, 240, 339, 360, 394, 452, 565, 591, 678, 720, 788, 904, 985, 1017, 1130, 1182, 1307, 1356, 1576, 1695, 1773, 1808, 1970, 2034, 2260, 2364, 2614, 2712, 2955, 3152, 3390, 3546, 3921, 3940, 4068, 4520, 4728, 5085, 5228, 5424, 5910, 6535, 6780, 7092, 7842, 7880, 8136, 8865, 9040, 9456, 10170, 10456, 11763, 11820, 13070, 13560, 14184, 15684, 15760, 16272, 17730, 19605, 20340, 20912, 22261, 23526, 23640, 26140, 27120, 28368, 31368, 35460, 39210, 40680, 44522, 47052, 47280, 52280, 58815, 62736, 66783, 70920, 78420, 81360, 89044, 94104, 104560, 111305, 117630, 133566, 141840, 147691, 156840, 178088, 188208, 200349, 222610, 235260, 257479, 267132, 295382, 313680, 333915, 356176, 400698, 443073, 445220, 470520, 514958, 534264, 590764, 667830, 738455, 772437, 801396, 886146, 890440, 941040, 1001745, 1029916, 1068528, 1181528, 1287395, 1329219, 1335660, 1476910, 1544874, 1602792, 1772292, 1780880, 2003490, 2059832, 2215365, 2317311, 2363056, 2574790, 2658438, 2671320, 2953820, 3089748, 3205584, 3544584, 3862185, 4006980, 4119664, 4430730, 4634622, 5149580, 5316876, 5342640, 5907640, 6179496, 6646095, 7089168, 7724370, 8013960, 8861460, 9269244, 10299160, 10633752, 11586555, 11815280, 12358992, 13292190, 15448740, 16027920, 17722920, 18538488, 20598320, 21267504, 23173110, 26584380, 29095127, 30897480, 35445840, 37076976, 46346220, 53168760, 58190254, 61794960, 87285381, 92692440, 106337520, 116380508, 145475635, 174570762, 185384880, 232761016, 261856143, 290951270, 349141524, 436426905, 465522032, 523712286, 581902540, 698283048, 872853810, 1047424572, 1163805080, 1309280715, 1396566096, 1745707620, 2094849144, 2327610160, 2618561430, 3491415240, 4189698288, 5237122860, 6982830480, 10474245720, 20948491440]

約数ペア:

[(1, 20948491440), (2, 10474245720), (3, 6982830480), (4, 5237122860), (5, 4189698288), (6, 3491415240), (8, 2618561430), (9, 2327610160), (10, 2094849144), (12, 1745707620), (15, 1396566096), (16, 1309280715), (18, 1163805080), (20, 1047424572), (24, 872853810), (30, 698283048), (36, 581902540), (40, 523712286), (45, 465522032), (48, 436426905), (60, 349141524), (72, 290951270), (80, 261856143), (90, 232761016), (113, 185384880), (120, 174570762), (144, 145475635), (180, 116380508), (197, 106337520), (226, 92692440), (240, 87285381), (339, 61794960), (360, 58190254), (394, 53168760), (452, 46346220), (565, 37076976), (591, 35445840), (678, 30897480), (720, 29095127), (788, 26584380), (904, 23173110), (985, 21267504), (1017, 20598320), (1130, 18538488), (1182, 17722920), (1307, 16027920), (1356, 15448740), (1576, 13292190), (1695, 12358992), (1773, 11815280), (1808, 11586555), (1970, 10633752), (2034, 10299160), (2260, 9269244), (2364, 8861460), (2614, 8013960), (2712, 7724370), (2955, 7089168), (3152, 6646095), (3390, 6179496), (3546, 5907640), (3921, 5342640), (3940, 5316876), (4068, 5149580), (4520, 4634622), (4728, 4430730), (5085, 4119664), (5228, 4006980), (5424, 3862185), (5910, 3544584), (6535, 3205584), (6780, 3089748), (7092, 2953820), (7842, 2671320), (7880, 2658438), (8136, 2574790), (8865, 2363056), (9040, 2317311), (9456, 2215365), (10170, 2059832), (10456, 2003490), (11763, 1780880), (11820, 1772292), (13070, 1602792), (13560, 1544874), (14184, 1476910), (15684, 1335660), (15760, 1329219), (16272, 1287395), (17730, 1181528), (19605, 1068528), (20340, 1029916), (20912, 1001745), (22261, 941040), (23526, 890440), (23640, 886146), (26140, 801396), (27120, 772437), (28368, 738455), (31368, 667830), (35460, 590764), (39210, 534264), (40680, 514958), (44522, 470520), (47052, 445220), (47280, 443073), (52280, 400698), (58815, 356176), (62736, 333915), (66783, 313680), (70920, 295382), (78420, 267132), (81360, 257479), (89044, 235260), (94104, 222610), (104560, 200349), (111305, 188208), (117630, 178088), (133566, 156840), (141840, 147691)]