7779020

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{3851}}^1$

素因数の和:3961

約数の個数: 24

約数和(自身を含む): 16501968

約数和(自身を除く): 8722948

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 3851, 7702, 15404, 19255, 38510, 77020, 388951, 777902, 1555804, 1944755, 3889510, 7779020]

約数ペア:

[(1, 7779020), (2, 3889510), (4, 1944755), (5, 1555804), (10, 777902), (20, 388951), (101, 77020), (202, 38510), (404, 19255), (505, 15404), (1010, 7702), (2020, 3851)]