20749160

素因数分解:

$2^3\times 5^1\times {\mathrm{518729}}^1$

素因数の和:518740

約数の個数: 16

約数和(自身を含む): 46685700

約数和(自身を除く): 25936540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 518729, 1037458, 2074916, 2593645, 4149832, 5187290, 10374580, 20749160]

約数ペア:

[(1, 20749160), (2, 10374580), (4, 5187290), (5, 4149832), (8, 2593645), (10, 2074916), (20, 1037458), (40, 518729)]