800528020

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{396301}}^1$

素因数の和:396411

約数の個数: 24

約数和(自身を含む): 1697757768

約数和(自身を除く): 897229748

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 396301, 792602, 1585204, 1981505, 3963010, 7926020, 40026401, 80052802, 160105604, 200132005, 400264010, 800528020]

約数ペア:

[(1, 800528020), (2, 400264010), (4, 200132005), (5, 160105604), (10, 80052802), (20, 40026401), (101, 7926020), (202, 3963010), (404, 1981505), (505, 1585204), (1010, 792602), (2020, 396301)]