1247257856

素因数分解:

$2^8\times {\mathrm{13}}^2\times {\mathrm{127}}^1\times {\mathrm{227}}^1$

素因数の和:396

約数の個数: 108

約数和(自身を含む): 2729083392

約数和(自身を除く): 1481825536

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 127, 128, 169, 208, 227, 254, 256, 338, 416, 454, 508, 676, 832, 908, 1016, 1352, 1651, 1664, 1816, 2032, 2704, 2951, 3302, 3328, 3632, 4064, 5408, 5902, 6604, 7264, 8128, 10816, 11804, 13208, 14528, 16256, 21463, 21632, 23608, 26416, 28829, 29056, 32512, 38363, 42926, 43264, 47216, 52832, 57658, 58112, 76726, 85852, 94432, 105664, 115316, 153452, 171704, 188864, 211328, 230632, 306904, 343408, 374777, 377728, 422656, 461264, 613808, 686816, 749554, 755456, 922528, 1227616, 1373632, 1499108, 1845056, 2455232, 2747264, 2998216, 3690112, 4872101, 4910464, 5494528, 5996432, 7380224, 9744202, 9820928, 11992864, 19488404, 23985728, 38976808, 47971456, 77953616, 95942912, 155907232, 311814464, 623628928, 1247257856]

約数ペア:

[(1, 1247257856), (2, 623628928), (4, 311814464), (8, 155907232), (13, 95942912), (16, 77953616), (26, 47971456), (32, 38976808), (52, 23985728), (64, 19488404), (104, 11992864), (127, 9820928), (128, 9744202), (169, 7380224), (208, 5996432), (227, 5494528), (254, 4910464), (256, 4872101), (338, 3690112), (416, 2998216), (454, 2747264), (508, 2455232), (676, 1845056), (832, 1499108), (908, 1373632), (1016, 1227616), (1352, 922528), (1651, 755456), (1664, 749554), (1816, 686816), (2032, 613808), (2704, 461264), (2951, 422656), (3302, 377728), (3328, 374777), (3632, 343408), (4064, 306904), (5408, 230632), (5902, 211328), (6604, 188864), (7264, 171704), (8128, 153452), (10816, 115316), (11804, 105664), (13208, 94432), (14528, 85852), (16256, 76726), (21463, 58112), (21632, 57658), (23608, 52832), (26416, 47216), (28829, 43264), (29056, 42926), (32512, 38363)]