12885020

素因数分解:

$2^2\times 5^1\times {\mathrm{631}}^1\times {\mathrm{1021}}^1$

素因数の和:1661

約数の個数: 24

約数和(自身を含む): 27127968

約数和(自身を除く): 14242948

約数列:

[1, 2, 4, 5, 10, 20, 631, 1021, 1262, 2042, 2524, 3155, 4084, 5105, 6310, 10210, 12620, 20420, 644251, 1288502, 2577004, 3221255, 6442510, 12885020]

約数ペア:

[(1, 12885020), (2, 6442510), (4, 3221255), (5, 2577004), (10, 1288502), (20, 644251), (631, 20420), (1021, 12620), (1262, 10210), (2042, 6310), (2524, 5105), (3155, 4084)]