257112128

素因数分解:

$2^6\times 7^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{337}}^1$

素因数の和:500

約数の個数: 112

約数和(自身を含む): 634617984

約数和(自身を除く): 377505856

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 131, 182, 208, 224, 262, 337, 364, 416, 448, 524, 674, 728, 832, 917, 1048, 1348, 1456, 1703, 1834, 2096, 2359, 2696, 2912, 3406, 3668, 4192, 4381, 4718, 5392, 5824, 6812, 7336, 8384, 8762, 9436, 10784, 11921, 13624, 14672, 17524, 18872, 21568, 23842, 27248, 29344, 30667, 35048, 37744, 44147, 47684, 54496, 58688, 61334, 70096, 75488, 88294, 95368, 108992, 122668, 140192, 150976, 176588, 190736, 245336, 280384, 309029, 353176, 381472, 490672, 573911, 618058, 706352, 762944, 981344, 1147822, 1236116, 1412704, 1962688, 2295644, 2472232, 2825408, 4017377, 4591288, 4944464, 8034754, 9182576, 9888928, 16069508, 18365152, 19777856, 32139016, 36730304, 64278032, 128556064, 257112128]

約数ペア:

[(1, 257112128), (2, 128556064), (4, 64278032), (7, 36730304), (8, 32139016), (13, 19777856), (14, 18365152), (16, 16069508), (26, 9888928), (28, 9182576), (32, 8034754), (52, 4944464), (56, 4591288), (64, 4017377), (91, 2825408), (104, 2472232), (112, 2295644), (131, 1962688), (182, 1412704), (208, 1236116), (224, 1147822), (262, 981344), (337, 762944), (364, 706352), (416, 618058), (448, 573911), (524, 490672), (674, 381472), (728, 353176), (832, 309029), (917, 280384), (1048, 245336), (1348, 190736), (1456, 176588), (1703, 150976), (1834, 140192), (2096, 122668), (2359, 108992), (2696, 95368), (2912, 88294), (3406, 75488), (3668, 70096), (4192, 61334), (4381, 58688), (4718, 54496), (5392, 47684), (5824, 44147), (6812, 37744), (7336, 35048), (8384, 30667), (8762, 29344), (9436, 27248), (10784, 23842), (11921, 21568), (13624, 18872), (14672, 17524)]