20289528

素因数分解:

$2^3\times 3^6\times 7^2\times {\mathrm{71}}^1$

素因数の和:109

約数の個数: 168

約数和(自身を含む): 67285080

約数和(自身を除く): 46995552

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 49, 54, 56, 63, 71, 72, 81, 84, 98, 108, 126, 142, 147, 162, 168, 189, 196, 213, 216, 243, 252, 284, 294, 324, 378, 392, 426, 441, 486, 497, 504, 567, 568, 588, 639, 648, 729, 756, 852, 882, 972, 994, 1134, 1176, 1278, 1323, 1458, 1491, 1512, 1701, 1704, 1764, 1917, 1944, 1988, 2268, 2556, 2646, 2916, 2982, 3402, 3479, 3528, 3834, 3969, 3976, 4473, 4536, 5103, 5112, 5292, 5751, 5832, 5964, 6804, 6958, 7668, 7938, 8946, 10206, 10437, 10584, 11502, 11907, 11928, 13419, 13608, 13916, 15336, 15876, 17253, 17892, 20412, 20874, 23004, 23814, 26838, 27832, 31311, 31752, 34506, 35721, 35784, 40257, 40824, 41748, 46008, 47628, 51759, 53676, 62622, 69012, 71442, 80514, 83496, 93933, 95256, 103518, 107352, 120771, 125244, 138024, 142884, 161028, 187866, 207036, 241542, 250488, 281799, 285768, 322056, 362313, 375732, 414072, 483084, 563598, 724626, 751464, 845397, 966168, 1127196, 1449252, 1690794, 2254392, 2536191, 2898504, 3381588, 5072382, 6763176, 10144764, 20289528]

約数ペア:

[(1, 20289528), (2, 10144764), (3, 6763176), (4, 5072382), (6, 3381588), (7, 2898504), (8, 2536191), (9, 2254392), (12, 1690794), (14, 1449252), (18, 1127196), (21, 966168), (24, 845397), (27, 751464), (28, 724626), (36, 563598), (42, 483084), (49, 414072), (54, 375732), (56, 362313), (63, 322056), (71, 285768), (72, 281799), (81, 250488), (84, 241542), (98, 207036), (108, 187866), (126, 161028), (142, 142884), (147, 138024), (162, 125244), (168, 120771), (189, 107352), (196, 103518), (213, 95256), (216, 93933), (243, 83496), (252, 80514), (284, 71442), (294, 69012), (324, 62622), (378, 53676), (392, 51759), (426, 47628), (441, 46008), (486, 41748), (497, 40824), (504, 40257), (567, 35784), (568, 35721), (588, 34506), (639, 31752), (648, 31311), (729, 27832), (756, 26838), (852, 23814), (882, 23004), (972, 20874), (994, 20412), (1134, 17892), (1176, 17253), (1278, 15876), (1323, 15336), (1458, 13916), (1491, 13608), (1512, 13419), (1701, 11928), (1704, 11907), (1764, 11502), (1917, 10584), (1944, 10437), (1988, 10206), (2268, 8946), (2556, 7938), (2646, 7668), (2916, 6958), (2982, 6804), (3402, 5964), (3479, 5832), (3528, 5751), (3834, 5292), (3969, 5112), (3976, 5103), (4473, 4536)]