20311160

素因数分解:

$2^3\times 5^1\times {\mathrm{507779}}^1$

素因数の和:507790

約数の個数: 16

約数和(自身を含む): 45700200

約数和(自身を除く): 25389040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 507779, 1015558, 2031116, 2538895, 4062232, 5077790, 10155580, 20311160]

約数ペア:

[(1, 20311160), (2, 10155580), (4, 5077790), (5, 4062232), (8, 2538895), (10, 2031116), (20, 1015558), (40, 507779)]