20125028

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{181}}^1$

素因数の和:241

約数の個数: 72

約数和(自身を含む): 46597824

約数和(自身を除く): 26472796

約数列:

[1, 2, 4, 7, 11, 14, 19, 22, 28, 38, 44, 76, 77, 133, 154, 181, 209, 266, 308, 361, 362, 418, 532, 722, 724, 836, 1267, 1444, 1463, 1991, 2527, 2534, 2926, 3439, 3971, 3982, 5054, 5068, 5852, 6878, 7942, 7964, 10108, 13756, 13937, 15884, 24073, 27797, 27874, 37829, 48146, 55594, 55748, 65341, 75658, 96292, 111188, 130682, 151316, 261364, 264803, 457387, 529606, 718751, 914774, 1059212, 1437502, 1829548, 2875004, 5031257, 10062514, 20125028]

約数ペア:

[(1, 20125028), (2, 10062514), (4, 5031257), (7, 2875004), (11, 1829548), (14, 1437502), (19, 1059212), (22, 914774), (28, 718751), (38, 529606), (44, 457387), (76, 264803), (77, 261364), (133, 151316), (154, 130682), (181, 111188), (209, 96292), (266, 75658), (308, 65341), (361, 55748), (362, 55594), (418, 48146), (532, 37829), (722, 27874), (724, 27797), (836, 24073), (1267, 15884), (1444, 13937), (1463, 13756), (1991, 10108), (2527, 7964), (2534, 7942), (2926, 6878), (3439, 5852), (3971, 5068), (3982, 5054)]