20575016

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{263}}^1$

素因数の和:414

約数の個数: 64

約数和(自身を含む): 48660480

約数和(自身を除く): 28085464

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 77, 88, 127, 154, 254, 263, 308, 508, 526, 616, 889, 1016, 1052, 1397, 1778, 1841, 2104, 2794, 2893, 3556, 3682, 5588, 5786, 7112, 7364, 9779, 11176, 11572, 14728, 19558, 20251, 23144, 33401, 39116, 40502, 66802, 78232, 81004, 133604, 162008, 233807, 267208, 367411, 467614, 734822, 935228, 1469644, 1870456, 2571877, 2939288, 5143754, 10287508, 20575016]

約数ペア:

[(1, 20575016), (2, 10287508), (4, 5143754), (7, 2939288), (8, 2571877), (11, 1870456), (14, 1469644), (22, 935228), (28, 734822), (44, 467614), (56, 367411), (77, 267208), (88, 233807), (127, 162008), (154, 133604), (254, 81004), (263, 78232), (308, 66802), (508, 40502), (526, 39116), (616, 33401), (889, 23144), (1016, 20251), (1052, 19558), (1397, 14728), (1778, 11572), (1841, 11176), (2104, 9779), (2794, 7364), (2893, 7112), (3556, 5786), (3682, 5588)]