20471050

素因数分解:

$2^1\times 5^2\times {\mathrm{401}}^1\times {\mathrm{1021}}^1$

素因数の和:1434

約数の個数: 24

約数和(自身を含む): 38208492

約数和(自身を除く): 17737442

約数列:

[1, 2, 5, 10, 25, 50, 401, 802, 1021, 2005, 2042, 4010, 5105, 10025, 10210, 20050, 25525, 51050, 409421, 818842, 2047105, 4094210, 10235525, 20471050]

約数ペア:

[(1, 20471050), (2, 10235525), (5, 4094210), (10, 2047105), (25, 818842), (50, 409421), (401, 51050), (802, 25525), (1021, 20050), (2005, 10210), (2042, 10025), (4010, 5105)]