217291475

素因数分解:

$5^2\times {\mathrm{79}}^1\times {\mathrm{269}}^1\times {\mathrm{409}}^1$

素因数の和:767

約数の個数: 24

約数和(自身を含む): 274536000

約数和(自身を除く): 57244525

約数列:

[1, 5, 25, 79, 269, 395, 409, 1345, 1975, 2045, 6725, 10225, 21251, 32311, 106255, 110021, 161555, 531275, 550105, 807775, 2750525, 8691659, 43458295, 217291475]

約数ペア:

[(1, 217291475), (5, 43458295), (25, 8691659), (79, 2750525), (269, 807775), (395, 550105), (409, 531275), (1345, 161555), (1975, 110021), (2045, 106255), (6725, 32311), (10225, 21251)]