257991864

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{383}}^1$

素因数の和:549

約数の個数: 128

約数和(自身を含む): 743178240

約数和(自身を除く): 485186376

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 17, 24, 26, 34, 39, 51, 52, 68, 78, 102, 104, 127, 136, 156, 204, 221, 254, 312, 381, 383, 408, 442, 508, 663, 762, 766, 884, 1016, 1149, 1326, 1524, 1532, 1651, 1768, 2159, 2298, 2652, 3048, 3064, 3302, 4318, 4596, 4953, 4979, 5304, 6477, 6511, 6604, 8636, 9192, 9906, 9958, 12954, 13022, 13208, 14937, 17272, 19533, 19812, 19916, 25908, 26044, 28067, 29874, 39066, 39624, 39832, 48641, 51816, 52088, 56134, 59748, 78132, 84201, 84643, 97282, 112268, 119496, 145923, 156264, 168402, 169286, 194564, 224536, 253929, 291846, 336804, 338572, 389128, 507858, 583692, 632333, 673608, 677144, 826897, 1015716, 1167384, 1264666, 1653794, 1896999, 2031432, 2480691, 2529332, 3307588, 3793998, 4961382, 5058664, 6615176, 7587996, 9922764, 10749661, 15175992, 19845528, 21499322, 32248983, 42998644, 64497966, 85997288, 128995932, 257991864]

約数ペア:

[(1, 257991864), (2, 128995932), (3, 85997288), (4, 64497966), (6, 42998644), (8, 32248983), (12, 21499322), (13, 19845528), (17, 15175992), (24, 10749661), (26, 9922764), (34, 7587996), (39, 6615176), (51, 5058664), (52, 4961382), (68, 3793998), (78, 3307588), (102, 2529332), (104, 2480691), (127, 2031432), (136, 1896999), (156, 1653794), (204, 1264666), (221, 1167384), (254, 1015716), (312, 826897), (381, 677144), (383, 673608), (408, 632333), (442, 583692), (508, 507858), (663, 389128), (762, 338572), (766, 336804), (884, 291846), (1016, 253929), (1149, 224536), (1326, 194564), (1524, 169286), (1532, 168402), (1651, 156264), (1768, 145923), (2159, 119496), (2298, 112268), (2652, 97282), (3048, 84643), (3064, 84201), (3302, 78132), (4318, 59748), (4596, 56134), (4953, 52088), (4979, 51816), (5304, 48641), (6477, 39832), (6511, 39624), (6604, 39066), (8636, 29874), (9192, 28067), (9906, 26044), (9958, 25908), (12954, 19916), (13022, 19812), (13208, 19533), (14937, 17272)]