20781609588

素因数分解:

$2^2\times 3^3\times {\mathrm{37}}^1\times {\mathrm{197}}^1\times {\mathrm{26399}}^1$

素因数の和:26646

約数の個数: 96

約数和(自身を含む): 55617408000

約数和(自身を除く): 34835798412

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 37, 54, 74, 108, 111, 148, 197, 222, 333, 394, 444, 591, 666, 788, 999, 1182, 1332, 1773, 1998, 2364, 3546, 3996, 5319, 7092, 7289, 10638, 14578, 21276, 21867, 26399, 29156, 43734, 52798, 65601, 79197, 87468, 105596, 131202, 158394, 196803, 237591, 262404, 316788, 393606, 475182, 712773, 787212, 950364, 976763, 1425546, 1953526, 2851092, 2930289, 3907052, 5200603, 5860578, 8790867, 10401206, 11721156, 15601809, 17581734, 20802412, 26372601, 31203618, 35163468, 46805427, 52745202, 62407236, 93610854, 105490404, 140416281, 187221708, 192422311, 280832562, 384844622, 561665124, 577266933, 769689244, 1154533866, 1731800799, 2309067732, 3463601598, 5195402397, 6927203196, 10390804794, 20781609588]

約数ペア:

[(1, 20781609588), (2, 10390804794), (3, 6927203196), (4, 5195402397), (6, 3463601598), (9, 2309067732), (12, 1731800799), (18, 1154533866), (27, 769689244), (36, 577266933), (37, 561665124), (54, 384844622), (74, 280832562), (108, 192422311), (111, 187221708), (148, 140416281), (197, 105490404), (222, 93610854), (333, 62407236), (394, 52745202), (444, 46805427), (591, 35163468), (666, 31203618), (788, 26372601), (999, 20802412), (1182, 17581734), (1332, 15601809), (1773, 11721156), (1998, 10401206), (2364, 8790867), (3546, 5860578), (3996, 5200603), (5319, 3907052), (7092, 2930289), (7289, 2851092), (10638, 1953526), (14578, 1425546), (21276, 976763), (21867, 950364), (26399, 787212), (29156, 712773), (43734, 475182), (52798, 393606), (65601, 316788), (79197, 262404), (87468, 237591), (105596, 196803), (131202, 158394)]