81721728

素因数分解:

$2^7\times 3^2\times {\mathrm{11}}^1\times {\mathrm{6449}}^1$

素因数の和:6480

約数の個数: 96

約数和(自身を含む): 256581000

約数和(自身を除く): 174859272

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 32, 33, 36, 44, 48, 64, 66, 72, 88, 96, 99, 128, 132, 144, 176, 192, 198, 264, 288, 352, 384, 396, 528, 576, 704, 792, 1056, 1152, 1408, 1584, 2112, 3168, 4224, 6336, 6449, 12672, 12898, 19347, 25796, 38694, 51592, 58041, 70939, 77388, 103184, 116082, 141878, 154776, 206368, 212817, 232164, 283756, 309552, 412736, 425634, 464328, 567512, 619104, 638451, 825472, 851268, 928656, 1135024, 1238208, 1276902, 1702536, 1857312, 2270048, 2476416, 2553804, 3405072, 3714624, 4540096, 5107608, 6810144, 7429248, 9080192, 10215216, 13620288, 20430432, 27240576, 40860864, 81721728]

約数ペア:

[(1, 81721728), (2, 40860864), (3, 27240576), (4, 20430432), (6, 13620288), (8, 10215216), (9, 9080192), (11, 7429248), (12, 6810144), (16, 5107608), (18, 4540096), (22, 3714624), (24, 3405072), (32, 2553804), (33, 2476416), (36, 2270048), (44, 1857312), (48, 1702536), (64, 1276902), (66, 1238208), (72, 1135024), (88, 928656), (96, 851268), (99, 825472), (128, 638451), (132, 619104), (144, 567512), (176, 464328), (192, 425634), (198, 412736), (264, 309552), (288, 283756), (352, 232164), (384, 212817), (396, 206368), (528, 154776), (576, 141878), (704, 116082), (792, 103184), (1056, 77388), (1152, 70939), (1408, 58041), (1584, 51592), (2112, 38694), (3168, 25796), (4224, 19347), (6336, 12898), (6449, 12672)]