256055360

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{389}}^1$

素因数の和:445

約数の個数: 168

約数和(自身を含む): 711448920

約数和(自身を除く): 455393560

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 32, 34, 40, 44, 55, 64, 68, 80, 85, 88, 110, 121, 136, 160, 170, 176, 187, 220, 242, 272, 320, 340, 352, 374, 389, 440, 484, 544, 605, 680, 704, 748, 778, 880, 935, 968, 1088, 1210, 1360, 1496, 1556, 1760, 1870, 1936, 1945, 2057, 2420, 2720, 2992, 3112, 3520, 3740, 3872, 3890, 4114, 4279, 4840, 5440, 5984, 6224, 6613, 7480, 7744, 7780, 8228, 8558, 9680, 10285, 11968, 12448, 13226, 14960, 15560, 16456, 17116, 19360, 20570, 21395, 24896, 26452, 29920, 31120, 32912, 33065, 34232, 38720, 41140, 42790, 47069, 52904, 59840, 62240, 65824, 66130, 68464, 72743, 82280, 85580, 94138, 105808, 124480, 131648, 132260, 136928, 145486, 164560, 171160, 188276, 211616, 235345, 264520, 273856, 290972, 329120, 342320, 363715, 376552, 423232, 470690, 529040, 581944, 658240, 684640, 727430, 753104, 800173, 941380, 1058080, 1163888, 1369280, 1454860, 1506208, 1600346, 1882760, 2116160, 2327776, 2909720, 3012416, 3200692, 3765520, 4000865, 4655552, 5819440, 6401384, 7531040, 8001730, 11638880, 12802768, 15062080, 16003460, 23277760, 25605536, 32006920, 51211072, 64013840, 128027680, 256055360]

約数ペア:

[(1, 256055360), (2, 128027680), (4, 64013840), (5, 51211072), (8, 32006920), (10, 25605536), (11, 23277760), (16, 16003460), (17, 15062080), (20, 12802768), (22, 11638880), (32, 8001730), (34, 7531040), (40, 6401384), (44, 5819440), (55, 4655552), (64, 4000865), (68, 3765520), (80, 3200692), (85, 3012416), (88, 2909720), (110, 2327776), (121, 2116160), (136, 1882760), (160, 1600346), (170, 1506208), (176, 1454860), (187, 1369280), (220, 1163888), (242, 1058080), (272, 941380), (320, 800173), (340, 753104), (352, 727430), (374, 684640), (389, 658240), (440, 581944), (484, 529040), (544, 470690), (605, 423232), (680, 376552), (704, 363715), (748, 342320), (778, 329120), (880, 290972), (935, 273856), (968, 264520), (1088, 235345), (1210, 211616), (1360, 188276), (1496, 171160), (1556, 164560), (1760, 145486), (1870, 136928), (1936, 132260), (1945, 131648), (2057, 124480), (2420, 105808), (2720, 94138), (2992, 85580), (3112, 82280), (3520, 72743), (3740, 68464), (3872, 66130), (3890, 65824), (4114, 62240), (4279, 59840), (4840, 52904), (5440, 47069), (5984, 42790), (6224, 41140), (6613, 38720), (7480, 34232), (7744, 33065), (7780, 32912), (8228, 31120), (8558, 29920), (9680, 26452), (10285, 24896), (11968, 21395), (12448, 20570), (13226, 19360), (14960, 17116), (15560, 16456)]