12541720

素因数分解:

$2^3\times 5^1\times {\mathrm{313543}}^1$

素因数の和:313554

約数の個数: 16

約数和(自身を含む): 28218960

約数和(自身を除く): 15677240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313543, 627086, 1254172, 1567715, 2508344, 3135430, 6270860, 12541720]

約数ペア:

[(1, 12541720), (2, 6270860), (4, 3135430), (5, 2508344), (8, 1567715), (10, 1254172), (20, 627086), (40, 313543)]