261971712

素因数分解:

$2^8\times 3^3\times {\mathrm{151}}^1\times {\mathrm{251}}^1$

素因数の和:427

約数の個数: 144

約数和(自身を含む): 782933760

約数和(自身を除く): 520962048

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 72, 96, 108, 128, 144, 151, 192, 216, 251, 256, 288, 302, 384, 432, 453, 502, 576, 604, 753, 768, 864, 906, 1004, 1152, 1208, 1359, 1506, 1728, 1812, 2008, 2259, 2304, 2416, 2718, 3012, 3456, 3624, 4016, 4077, 4518, 4832, 5436, 6024, 6777, 6912, 7248, 8032, 8154, 9036, 9664, 10872, 12048, 13554, 14496, 16064, 16308, 18072, 19328, 21744, 24096, 27108, 28992, 32128, 32616, 36144, 37901, 38656, 43488, 48192, 54216, 57984, 64256, 65232, 72288, 75802, 86976, 96384, 108432, 113703, 115968, 130464, 144576, 151604, 173952, 192768, 216864, 227406, 260928, 289152, 303208, 341109, 347904, 433728, 454812, 521856, 578304, 606416, 682218, 867456, 909624, 1023327, 1043712, 1212832, 1364436, 1734912, 1819248, 2046654, 2425664, 2728872, 3638496, 4093308, 4851328, 5457744, 7276992, 8186616, 9702656, 10915488, 14553984, 16373232, 21830976, 29107968, 32746464, 43661952, 65492928, 87323904, 130985856, 261971712]

約数ペア:

[(1, 261971712), (2, 130985856), (3, 87323904), (4, 65492928), (6, 43661952), (8, 32746464), (9, 29107968), (12, 21830976), (16, 16373232), (18, 14553984), (24, 10915488), (27, 9702656), (32, 8186616), (36, 7276992), (48, 5457744), (54, 4851328), (64, 4093308), (72, 3638496), (96, 2728872), (108, 2425664), (128, 2046654), (144, 1819248), (151, 1734912), (192, 1364436), (216, 1212832), (251, 1043712), (256, 1023327), (288, 909624), (302, 867456), (384, 682218), (432, 606416), (453, 578304), (502, 521856), (576, 454812), (604, 433728), (753, 347904), (768, 341109), (864, 303208), (906, 289152), (1004, 260928), (1152, 227406), (1208, 216864), (1359, 192768), (1506, 173952), (1728, 151604), (1812, 144576), (2008, 130464), (2259, 115968), (2304, 113703), (2416, 108432), (2718, 96384), (3012, 86976), (3456, 75802), (3624, 72288), (4016, 65232), (4077, 64256), (4518, 57984), (4832, 54216), (5436, 48192), (6024, 43488), (6777, 38656), (6912, 37901), (7248, 36144), (8032, 32616), (8154, 32128), (9036, 28992), (9664, 27108), (10872, 24096), (12048, 21744), (13554, 19328), (14496, 18072), (16064, 16308)]