20912179968

素因数分解:

$2^8\times 3^3\times {\mathrm{23}}^1\times {\mathrm{131543}}^1$

素因数の和:131591

約数の個数: 144

約数和(自身を含む): 64530224640

約数和(自身を除く): 43618044672

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 27, 32, 36, 46, 48, 54, 64, 69, 72, 92, 96, 108, 128, 138, 144, 184, 192, 207, 216, 256, 276, 288, 368, 384, 414, 432, 552, 576, 621, 736, 768, 828, 864, 1104, 1152, 1242, 1472, 1656, 1728, 2208, 2304, 2484, 2944, 3312, 3456, 4416, 4968, 5888, 6624, 6912, 8832, 9936, 13248, 17664, 19872, 26496, 39744, 52992, 79488, 131543, 158976, 263086, 394629, 526172, 789258, 1052344, 1183887, 1578516, 2104688, 2367774, 3025489, 3157032, 3551661, 4209376, 4735548, 6050978, 6314064, 7103322, 8418752, 9076467, 9471096, 12101956, 12628128, 14206644, 16837504, 18152934, 18942192, 24203912, 25256256, 27229401, 28413288, 33675008, 36305868, 37884384, 48407824, 50512512, 54458802, 56826576, 72611736, 75768768, 81688203, 96815648, 101025024, 108917604, 113653152, 145223472, 151537536, 163376406, 193631296, 217835208, 227306304, 290446944, 303075072, 326752812, 387262592, 435670416, 454612608, 580893888, 653505624, 774525184, 871340832, 909225216, 1161787776, 1307011248, 1742681664, 2323575552, 2614022496, 3485363328, 5228044992, 6970726656, 10456089984, 20912179968]

約数ペア:

[(1, 20912179968), (2, 10456089984), (3, 6970726656), (4, 5228044992), (6, 3485363328), (8, 2614022496), (9, 2323575552), (12, 1742681664), (16, 1307011248), (18, 1161787776), (23, 909225216), (24, 871340832), (27, 774525184), (32, 653505624), (36, 580893888), (46, 454612608), (48, 435670416), (54, 387262592), (64, 326752812), (69, 303075072), (72, 290446944), (92, 227306304), (96, 217835208), (108, 193631296), (128, 163376406), (138, 151537536), (144, 145223472), (184, 113653152), (192, 108917604), (207, 101025024), (216, 96815648), (256, 81688203), (276, 75768768), (288, 72611736), (368, 56826576), (384, 54458802), (414, 50512512), (432, 48407824), (552, 37884384), (576, 36305868), (621, 33675008), (736, 28413288), (768, 27229401), (828, 25256256), (864, 24203912), (1104, 18942192), (1152, 18152934), (1242, 16837504), (1472, 14206644), (1656, 12628128), (1728, 12101956), (2208, 9471096), (2304, 9076467), (2484, 8418752), (2944, 7103322), (3312, 6314064), (3456, 6050978), (4416, 4735548), (4968, 4209376), (5888, 3551661), (6624, 3157032), (6912, 3025489), (8832, 2367774), (9936, 2104688), (13248, 1578516), (17664, 1183887), (19872, 1052344), (26496, 789258), (39744, 526172), (52992, 394629), (79488, 263086), (131543, 158976)]