8711980

素因数分解:

$2^2\times 5^1\times {\mathrm{659}}^1\times {\mathrm{661}}^1$

素因数の和:1329

約数の個数: 24

約数和(自身を含む): 18350640

約数和(自身を除く): 9638660

約数列:

[1, 2, 4, 5, 10, 20, 659, 661, 1318, 1322, 2636, 2644, 3295, 3305, 6590, 6610, 13180, 13220, 435599, 871198, 1742396, 2177995, 4355990, 8711980]

約数ペア:

[(1, 8711980), (2, 4355990), (4, 2177995), (5, 1742396), (10, 871198), (20, 435599), (659, 13220), (661, 13180), (1318, 6610), (1322, 6590), (2636, 3305), (2644, 3295)]