20512605560

素因数分解:

$2^3\times 5^1\times {\mathrm{512815139}}^1$

素因数の和:512815150

約数の個数: 16

約数和(自身を含む): 46153362600

約数和(自身を除く): 25640757040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 512815139, 1025630278, 2051260556, 2564075695, 4102521112, 5128151390, 10256302780, 20512605560]

約数ペア:

[(1, 20512605560), (2, 10256302780), (4, 5128151390), (5, 4102521112), (8, 2564075695), (10, 2051260556), (20, 1025630278), (40, 512815139)]