261125018

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{19}}^2\times {\mathrm{61}}^1$

素因数の和:137

約数の個数: 108

約数和(自身を含む): 537235146

約数和(自身を除く): 276110128

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 49, 61, 77, 98, 121, 122, 133, 154, 209, 242, 266, 361, 418, 427, 539, 671, 722, 847, 854, 931, 1078, 1159, 1342, 1463, 1694, 1862, 2299, 2318, 2527, 2926, 2989, 3971, 4598, 4697, 5054, 5929, 5978, 7381, 7942, 8113, 9394, 10241, 11858, 12749, 14762, 16093, 16226, 17689, 20482, 22021, 25498, 27797, 32186, 32879, 35378, 43681, 44042, 51667, 55594, 56791, 65758, 87362, 89243, 103334, 112651, 113582, 140239, 154147, 178486, 194579, 225302, 242231, 280478, 305767, 308294, 361669, 389158, 484462, 611534, 624701, 723338, 981673, 1079029, 1249402, 1695617, 1963346, 2140369, 2158058, 2664541, 3391234, 4280738, 5329082, 6871711, 11869319, 13743422, 18651787, 23738638, 37303574, 130562509, 261125018]

約数ペア:

[(1, 261125018), (2, 130562509), (7, 37303574), (11, 23738638), (14, 18651787), (19, 13743422), (22, 11869319), (38, 6871711), (49, 5329082), (61, 4280738), (77, 3391234), (98, 2664541), (121, 2158058), (122, 2140369), (133, 1963346), (154, 1695617), (209, 1249402), (242, 1079029), (266, 981673), (361, 723338), (418, 624701), (427, 611534), (539, 484462), (671, 389158), (722, 361669), (847, 308294), (854, 305767), (931, 280478), (1078, 242231), (1159, 225302), (1342, 194579), (1463, 178486), (1694, 154147), (1862, 140239), (2299, 113582), (2318, 112651), (2527, 103334), (2926, 89243), (2989, 87362), (3971, 65758), (4598, 56791), (4697, 55594), (5054, 51667), (5929, 44042), (5978, 43681), (7381, 35378), (7942, 32879), (8113, 32186), (9394, 27797), (10241, 25498), (11858, 22021), (12749, 20482), (14762, 17689), (16093, 16226)]