28132468

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:273

約数の個数: 72

約数和(自身を含む): 63032424

約数和(自身を除く): 34899956

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 61, 91, 98, 122, 181, 182, 196, 244, 362, 364, 427, 637, 724, 793, 854, 1267, 1274, 1586, 1708, 2353, 2534, 2548, 2989, 3172, 4706, 5068, 5551, 5978, 8869, 9412, 11041, 11102, 11956, 16471, 17738, 22082, 22204, 32942, 35476, 38857, 44164, 65884, 77287, 77714, 115297, 143533, 154574, 155428, 230594, 287066, 309148, 461188, 541009, 574132, 1004731, 1082018, 2009462, 2164036, 4018924, 7033117, 14066234, 28132468]

約数ペア:

[(1, 28132468), (2, 14066234), (4, 7033117), (7, 4018924), (13, 2164036), (14, 2009462), (26, 1082018), (28, 1004731), (49, 574132), (52, 541009), (61, 461188), (91, 309148), (98, 287066), (122, 230594), (181, 155428), (182, 154574), (196, 143533), (244, 115297), (362, 77714), (364, 77287), (427, 65884), (637, 44164), (724, 38857), (793, 35476), (854, 32942), (1267, 22204), (1274, 22082), (1586, 17738), (1708, 16471), (2353, 11956), (2534, 11102), (2548, 11041), (2989, 9412), (3172, 8869), (4706, 5978), (5068, 5551)]