7985725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{409}}^1$

素因数の和:501

約数の個数: 24

約数和(自身を含む): 10981440

約数和(自身を除く): 2995715

約数列:

[1, 5, 11, 25, 55, 71, 275, 355, 409, 781, 1775, 2045, 3905, 4499, 10225, 19525, 22495, 29039, 112475, 145195, 319429, 725975, 1597145, 7985725]

約数ペア:

[(1, 7985725), (5, 1597145), (11, 725975), (25, 319429), (55, 145195), (71, 112475), (275, 29039), (355, 22495), (409, 19525), (781, 10225), (1775, 4499), (2045, 3905)]