20123017768

素因数分解:

$2^3\times 7^2\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{16057}}^1$

素因数の和:16239

約数の個数: 96

約数和(自身を含む): 46131422400

約数和(自身を除く): 26008404632

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 49, 56, 92, 98, 139, 161, 184, 196, 278, 322, 392, 556, 644, 973, 1112, 1127, 1288, 1946, 2254, 3197, 3892, 4508, 6394, 6811, 7784, 9016, 12788, 13622, 16057, 22379, 25576, 27244, 32114, 44758, 54488, 64228, 89516, 112399, 128456, 156653, 179032, 224798, 313306, 369311, 449596, 626612, 738622, 786793, 899192, 1253224, 1477244, 1573586, 2231923, 2585177, 2954488, 3147172, 4463846, 5170354, 6294344, 8927692, 10340708, 15623461, 17855384, 18096239, 20681416, 31246922, 36192478, 51334229, 62493844, 72384956, 102668458, 109364227, 124987688, 144769912, 205336916, 218728454, 359339603, 410673832, 437456908, 718679206, 874913816, 1437358412, 2515377221, 2874716824, 5030754442, 10061508884, 20123017768]

約数ペア:

[(1, 20123017768), (2, 10061508884), (4, 5030754442), (7, 2874716824), (8, 2515377221), (14, 1437358412), (23, 874913816), (28, 718679206), (46, 437456908), (49, 410673832), (56, 359339603), (92, 218728454), (98, 205336916), (139, 144769912), (161, 124987688), (184, 109364227), (196, 102668458), (278, 72384956), (322, 62493844), (392, 51334229), (556, 36192478), (644, 31246922), (973, 20681416), (1112, 18096239), (1127, 17855384), (1288, 15623461), (1946, 10340708), (2254, 8927692), (3197, 6294344), (3892, 5170354), (4508, 4463846), (6394, 3147172), (6811, 2954488), (7784, 2585177), (9016, 2231923), (12788, 1573586), (13622, 1477244), (16057, 1253224), (22379, 899192), (25576, 786793), (27244, 738622), (32114, 626612), (44758, 449596), (54488, 369311), (64228, 313306), (89516, 224798), (112399, 179032), (128456, 156653)]