311949020

素因数分解:

$2^2\times 5^1\times {\mathrm{1399}}^1\times {\mathrm{11149}}^1$

素因数の和:12557

約数の個数: 24

約数和(自身を含む): 655620000

約数和(自身を除く): 343670980

約数列:

[1, 2, 4, 5, 10, 20, 1399, 2798, 5596, 6995, 11149, 13990, 22298, 27980, 44596, 55745, 111490, 222980, 15597451, 31194902, 62389804, 77987255, 155974510, 311949020]

約数ペア:

[(1, 311949020), (2, 155974510), (4, 77987255), (5, 62389804), (10, 31194902), (20, 15597451), (1399, 222980), (2798, 111490), (5596, 55745), (6995, 44596), (11149, 27980), (13990, 22298)]