21490908720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^2\times {\mathrm{307}}^1$

素因数の和:548

約数の個数: 240

約数和(自身を含む): 69713538048

約数和(自身を除く): 48222629328

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 97, 120, 124, 155, 186, 194, 240, 248, 291, 307, 310, 372, 388, 465, 485, 496, 582, 614, 620, 744, 776, 921, 930, 970, 1164, 1228, 1240, 1455, 1488, 1535, 1552, 1842, 1860, 1940, 2328, 2456, 2480, 2910, 3007, 3070, 3684, 3720, 3880, 4605, 4656, 4912, 5820, 6014, 6140, 7368, 7440, 7760, 9021, 9210, 9409, 9517, 11640, 12028, 12280, 14736, 15035, 18042, 18420, 18818, 19034, 23280, 24056, 24560, 28227, 28551, 29779, 30070, 36084, 36840, 37636, 38068, 45105, 47045, 47585, 48112, 56454, 57102, 59558, 60140, 72168, 73680, 75272, 76136, 89337, 90210, 94090, 95170, 112908, 114204, 119116, 120280, 141135, 142755, 144336, 148895, 150544, 152272, 178674, 180420, 188180, 190340, 225816, 228408, 238232, 240560, 282270, 285510, 291679, 297790, 357348, 360840, 376360, 380680, 446685, 451632, 456816, 476464, 564540, 571020, 583358, 595580, 714696, 721680, 752720, 761360, 875037, 893370, 923149, 1129080, 1142040, 1166716, 1191160, 1429392, 1458395, 1750074, 1786740, 1846298, 2258160, 2284080, 2333432, 2382320, 2769447, 2888563, 2916790, 3500148, 3573480, 3692596, 4375185, 4615745, 4666864, 5538894, 5777126, 5833580, 7000296, 7146960, 7385192, 8665689, 8750370, 9231490, 11077788, 11554252, 11667160, 13847235, 14000592, 14442815, 14770384, 17331378, 17500740, 18462980, 22155576, 23108504, 23334320, 27694470, 28885630, 34662756, 35001480, 36925960, 43328445, 44311152, 46217008, 55388940, 57771260, 69325512, 70002960, 73851920, 86656890, 89545453, 110777880, 115542520, 138651024, 173313780, 179090906, 221555760, 231085040, 268636359, 346627560, 358181812, 447727265, 537272718, 693255120, 716363624, 895454530, 1074545436, 1343181795, 1432727248, 1790909060, 2149090872, 2686363590, 3581818120, 4298181744, 5372727180, 7163636240, 10745454360, 21490908720]

約数ペア:

[(1, 21490908720), (2, 10745454360), (3, 7163636240), (4, 5372727180), (5, 4298181744), (6, 3581818120), (8, 2686363590), (10, 2149090872), (12, 1790909060), (15, 1432727248), (16, 1343181795), (20, 1074545436), (24, 895454530), (30, 716363624), (31, 693255120), (40, 537272718), (48, 447727265), (60, 358181812), (62, 346627560), (80, 268636359), (93, 231085040), (97, 221555760), (120, 179090906), (124, 173313780), (155, 138651024), (186, 115542520), (194, 110777880), (240, 89545453), (248, 86656890), (291, 73851920), (307, 70002960), (310, 69325512), (372, 57771260), (388, 55388940), (465, 46217008), (485, 44311152), (496, 43328445), (582, 36925960), (614, 35001480), (620, 34662756), (744, 28885630), (776, 27694470), (921, 23334320), (930, 23108504), (970, 22155576), (1164, 18462980), (1228, 17500740), (1240, 17331378), (1455, 14770384), (1488, 14442815), (1535, 14000592), (1552, 13847235), (1842, 11667160), (1860, 11554252), (1940, 11077788), (2328, 9231490), (2456, 8750370), (2480, 8665689), (2910, 7385192), (3007, 7146960), (3070, 7000296), (3684, 5833580), (3720, 5777126), (3880, 5538894), (4605, 4666864), (4656, 4615745), (4912, 4375185), (5820, 3692596), (6014, 3573480), (6140, 3500148), (7368, 2916790), (7440, 2888563), (7760, 2769447), (9021, 2382320), (9210, 2333432), (9409, 2284080), (9517, 2258160), (11640, 1846298), (12028, 1786740), (12280, 1750074), (14736, 1458395), (15035, 1429392), (18042, 1191160), (18420, 1166716), (18818, 1142040), (19034, 1129080), (23280, 923149), (24056, 893370), (24560, 875037), (28227, 761360), (28551, 752720), (29779, 721680), (30070, 714696), (36084, 595580), (36840, 583358), (37636, 571020), (38068, 564540), (45105, 476464), (47045, 456816), (47585, 451632), (48112, 446685), (56454, 380680), (57102, 376360), (59558, 360840), (60140, 357348), (72168, 297790), (73680, 291679), (75272, 285510), (76136, 282270), (89337, 240560), (90210, 238232), (94090, 228408), (95170, 225816), (112908, 190340), (114204, 188180), (119116, 180420), (120280, 178674), (141135, 152272), (142755, 150544), (144336, 148895)]