257193216

素因数分解:

$2^8\times 3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{431}}^1$

素因数の和:497

約数の個数: 216

約数和(自身を含む): 872411904

約数和(自身を除く): 615218688

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 37, 42, 48, 56, 63, 64, 72, 74, 84, 96, 111, 112, 126, 128, 144, 148, 168, 192, 222, 224, 252, 256, 259, 288, 296, 333, 336, 384, 431, 444, 448, 504, 518, 576, 592, 666, 672, 768, 777, 862, 888, 896, 1008, 1036, 1152, 1184, 1293, 1332, 1344, 1554, 1724, 1776, 1792, 2016, 2072, 2304, 2331, 2368, 2586, 2664, 2688, 3017, 3108, 3448, 3552, 3879, 4032, 4144, 4662, 4736, 5172, 5328, 5376, 6034, 6216, 6896, 7104, 7758, 8064, 8288, 9051, 9324, 9472, 10344, 10656, 12068, 12432, 13792, 14208, 15516, 15947, 16128, 16576, 18102, 18648, 20688, 21312, 24136, 24864, 27153, 27584, 28416, 31032, 31894, 33152, 36204, 37296, 41376, 42624, 47841, 48272, 49728, 54306, 55168, 62064, 63788, 66304, 72408, 74592, 82752, 85248, 95682, 96544, 99456, 108612, 110336, 111629, 124128, 127576, 143523, 144816, 149184, 165504, 191364, 193088, 198912, 217224, 223258, 248256, 255152, 287046, 289632, 298368, 331008, 334887, 382728, 386176, 434448, 446516, 496512, 510304, 574092, 579264, 596736, 669774, 765456, 772352, 868896, 893032, 993024, 1004661, 1020608, 1148184, 1158528, 1339548, 1530912, 1737792, 1786064, 2009322, 2041216, 2296368, 2317056, 2679096, 3061824, 3475584, 3572128, 4018644, 4082432, 4592736, 5358192, 6123648, 6951168, 7144256, 8037288, 9185472, 10716384, 12247296, 14288512, 16074576, 18370944, 21432768, 28577024, 32149152, 36741888, 42865536, 64298304, 85731072, 128596608, 257193216]

約数ペア:

[(1, 257193216), (2, 128596608), (3, 85731072), (4, 64298304), (6, 42865536), (7, 36741888), (8, 32149152), (9, 28577024), (12, 21432768), (14, 18370944), (16, 16074576), (18, 14288512), (21, 12247296), (24, 10716384), (28, 9185472), (32, 8037288), (36, 7144256), (37, 6951168), (42, 6123648), (48, 5358192), (56, 4592736), (63, 4082432), (64, 4018644), (72, 3572128), (74, 3475584), (84, 3061824), (96, 2679096), (111, 2317056), (112, 2296368), (126, 2041216), (128, 2009322), (144, 1786064), (148, 1737792), (168, 1530912), (192, 1339548), (222, 1158528), (224, 1148184), (252, 1020608), (256, 1004661), (259, 993024), (288, 893032), (296, 868896), (333, 772352), (336, 765456), (384, 669774), (431, 596736), (444, 579264), (448, 574092), (504, 510304), (518, 496512), (576, 446516), (592, 434448), (666, 386176), (672, 382728), (768, 334887), (777, 331008), (862, 298368), (888, 289632), (896, 287046), (1008, 255152), (1036, 248256), (1152, 223258), (1184, 217224), (1293, 198912), (1332, 193088), (1344, 191364), (1554, 165504), (1724, 149184), (1776, 144816), (1792, 143523), (2016, 127576), (2072, 124128), (2304, 111629), (2331, 110336), (2368, 108612), (2586, 99456), (2664, 96544), (2688, 95682), (3017, 85248), (3108, 82752), (3448, 74592), (3552, 72408), (3879, 66304), (4032, 63788), (4144, 62064), (4662, 55168), (4736, 54306), (5172, 49728), (5328, 48272), (5376, 47841), (6034, 42624), (6216, 41376), (6896, 37296), (7104, 36204), (7758, 33152), (8064, 31894), (8288, 31032), (9051, 28416), (9324, 27584), (9472, 27153), (10344, 24864), (10656, 24136), (12068, 21312), (12432, 20688), (13792, 18648), (14208, 18102), (15516, 16576), (15947, 16128)]