2668420

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1321}}^1$

素因数の和:1431

約数の個数: 24

約数和(自身を含む): 5663448

約数和(自身を除く): 2995028

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 1321, 2020, 2642, 5284, 6605, 13210, 26420, 133421, 266842, 533684, 667105, 1334210, 2668420]

約数ペア:

[(1, 2668420), (2, 1334210), (4, 667105), (5, 533684), (10, 266842), (20, 133421), (101, 26420), (202, 13210), (404, 6605), (505, 5284), (1010, 2642), (1321, 2020)]