1237780

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{311}}^1$

素因数の和:519

約数の個数: 24

約数和(自身を含む): 2620800

約数和(自身を除く): 1383020

約数列:

[1, 2, 4, 5, 10, 20, 199, 311, 398, 622, 796, 995, 1244, 1555, 1990, 3110, 3980, 6220, 61889, 123778, 247556, 309445, 618890, 1237780]

約数ペア:

[(1, 1237780), (2, 618890), (4, 309445), (5, 247556), (10, 123778), (20, 61889), (199, 6220), (311, 3980), (398, 3110), (622, 1990), (796, 1555), (995, 1244)]