20817798912

素因数分解:

$2^8\times 3^2\times {\mathrm{61}}^1\times {\mathrm{148123}}^1$

素因数の和:148206

約数の個数: 108

約数和(自身を含む): 61007239384

約数和(自身を除く): 40189440472

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 61, 64, 72, 96, 122, 128, 144, 183, 192, 244, 256, 288, 366, 384, 488, 549, 576, 732, 768, 976, 1098, 1152, 1464, 1952, 2196, 2304, 2928, 3904, 4392, 5856, 7808, 8784, 11712, 15616, 17568, 23424, 35136, 46848, 70272, 140544, 148123, 296246, 444369, 592492, 888738, 1184984, 1333107, 1777476, 2369968, 2666214, 3554952, 4739936, 5332428, 7109904, 9035503, 9479872, 10664856, 14219808, 18071006, 18959744, 21329712, 27106509, 28439616, 36142012, 37919488, 42659424, 54213018, 56879232, 72284024, 81319527, 85318848, 108426036, 113758464, 144568048, 162639054, 170637696, 216852072, 289136096, 325278108, 341275392, 433704144, 578272192, 650556216, 867408288, 1156544384, 1301112432, 1734816576, 2313088768, 2602224864, 3469633152, 5204449728, 6939266304, 10408899456, 20817798912]

約数ペア:

[(1, 20817798912), (2, 10408899456), (3, 6939266304), (4, 5204449728), (6, 3469633152), (8, 2602224864), (9, 2313088768), (12, 1734816576), (16, 1301112432), (18, 1156544384), (24, 867408288), (32, 650556216), (36, 578272192), (48, 433704144), (61, 341275392), (64, 325278108), (72, 289136096), (96, 216852072), (122, 170637696), (128, 162639054), (144, 144568048), (183, 113758464), (192, 108426036), (244, 85318848), (256, 81319527), (288, 72284024), (366, 56879232), (384, 54213018), (488, 42659424), (549, 37919488), (576, 36142012), (732, 28439616), (768, 27106509), (976, 21329712), (1098, 18959744), (1152, 18071006), (1464, 14219808), (1952, 10664856), (2196, 9479872), (2304, 9035503), (2928, 7109904), (3904, 5332428), (4392, 4739936), (5856, 3554952), (7808, 2666214), (8784, 2369968), (11712, 1777476), (15616, 1333107), (17568, 1184984), (23424, 888738), (35136, 592492), (46848, 444369), (70272, 296246), (140544, 148123)]