20646913836

素因数分解:

$2^2\times 3^1\times {\mathrm{53}}^1\times {\mathrm{419}}^1\times {\mathrm{77479}}^1$

素因数の和:77958

約数の個数: 48

約数和(自身を含む): 49202899200

約数和(自身を除く): 28555985364

約数列:

[1, 2, 3, 4, 6, 12, 53, 106, 159, 212, 318, 419, 636, 838, 1257, 1676, 2514, 5028, 22207, 44414, 66621, 77479, 88828, 133242, 154958, 232437, 266484, 309916, 464874, 929748, 4106387, 8212774, 12319161, 16425548, 24638322, 32463701, 49276644, 64927402, 97391103, 129854804, 194782206, 389564412, 1720576153, 3441152306, 5161728459, 6882304612, 10323456918, 20646913836]

約数ペア:

[(1, 20646913836), (2, 10323456918), (3, 6882304612), (4, 5161728459), (6, 3441152306), (12, 1720576153), (53, 389564412), (106, 194782206), (159, 129854804), (212, 97391103), (318, 64927402), (419, 49276644), (636, 32463701), (838, 24638322), (1257, 16425548), (1676, 12319161), (2514, 8212774), (5028, 4106387), (22207, 929748), (44414, 464874), (66621, 309916), (77479, 266484), (88828, 232437), (133242, 154958)]