689212270

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1811}}^1\times {\mathrm{2003}}^1$

素因数の和:3840

約数の個数: 32

約数和(自身を含む): 1307249280

約数和(自身を除く): 618037010

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 1811, 2003, 3622, 4006, 9055, 10015, 18110, 20030, 34409, 38057, 68818, 76114, 172045, 190285, 344090, 380570, 3627433, 7254866, 18137165, 36274330, 68921227, 137842454, 344606135, 689212270]

約数ペア:

[(1, 689212270), (2, 344606135), (5, 137842454), (10, 68921227), (19, 36274330), (38, 18137165), (95, 7254866), (190, 3627433), (1811, 380570), (2003, 344090), (3622, 190285), (4006, 172045), (9055, 76114), (10015, 68818), (18110, 38057), (20030, 34409)]