19680276

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{59}}^1$

素因数の和:122

約数の個数: 144

約数和(自身を含む): 61447680

約数和(自身を除く): 41767404

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 19, 21, 22, 28, 33, 38, 42, 44, 57, 59, 66, 76, 77, 84, 114, 118, 132, 133, 154, 177, 209, 228, 231, 236, 266, 308, 354, 361, 399, 413, 418, 462, 532, 627, 649, 708, 722, 798, 826, 836, 924, 1083, 1121, 1239, 1254, 1298, 1444, 1463, 1596, 1652, 1947, 2166, 2242, 2478, 2508, 2527, 2596, 2926, 3363, 3894, 3971, 4332, 4389, 4484, 4543, 4956, 5054, 5852, 6726, 7581, 7788, 7847, 7942, 8778, 9086, 10108, 11913, 12331, 13452, 13629, 15162, 15694, 15884, 17556, 18172, 21299, 23541, 23826, 24662, 27258, 27797, 30324, 31388, 36993, 42598, 47082, 47652, 49324, 54516, 55594, 63897, 73986, 83391, 85196, 86317, 94164, 111188, 127794, 147972, 149093, 166782, 172634, 234289, 255588, 258951, 298186, 333564, 345268, 447279, 468578, 517902, 596372, 702867, 894558, 937156, 1035804, 1405734, 1640023, 1789116, 2811468, 3280046, 4920069, 6560092, 9840138, 19680276]

約数ペア:

[(1, 19680276), (2, 9840138), (3, 6560092), (4, 4920069), (6, 3280046), (7, 2811468), (11, 1789116), (12, 1640023), (14, 1405734), (19, 1035804), (21, 937156), (22, 894558), (28, 702867), (33, 596372), (38, 517902), (42, 468578), (44, 447279), (57, 345268), (59, 333564), (66, 298186), (76, 258951), (77, 255588), (84, 234289), (114, 172634), (118, 166782), (132, 149093), (133, 147972), (154, 127794), (177, 111188), (209, 94164), (228, 86317), (231, 85196), (236, 83391), (266, 73986), (308, 63897), (354, 55594), (361, 54516), (399, 49324), (413, 47652), (418, 47082), (462, 42598), (532, 36993), (627, 31388), (649, 30324), (708, 27797), (722, 27258), (798, 24662), (826, 23826), (836, 23541), (924, 21299), (1083, 18172), (1121, 17556), (1239, 15884), (1254, 15694), (1298, 15162), (1444, 13629), (1463, 13452), (1596, 12331), (1652, 11913), (1947, 10108), (2166, 9086), (2242, 8778), (2478, 7942), (2508, 7847), (2527, 7788), (2596, 7581), (2926, 6726), (3363, 5852), (3894, 5054), (3971, 4956), (4332, 4543), (4389, 4484)]