20380825

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{401}}^1$

素因数の和:537

約数の個数: 24

約数和(自身を含む): 26917920

約数和(自身を除く): 6537095

約数列:

[1, 5, 19, 25, 95, 107, 401, 475, 535, 2005, 2033, 2675, 7619, 10025, 10165, 38095, 42907, 50825, 190475, 214535, 815233, 1072675, 4076165, 20380825]

約数ペア:

[(1, 20380825), (5, 4076165), (19, 1072675), (25, 815233), (95, 214535), (107, 190475), (401, 50825), (475, 42907), (535, 38095), (2005, 10165), (2033, 10025), (2675, 7619)]