66451780

素因数分解:

$2^2\times 5^1\times {\mathrm{857}}^1\times {\mathrm{3877}}^1$

素因数の和:4743

約数の個数: 24

約数和(自身を含む): 139747608

約数和(自身を除く): 73295828

約数列:

[1, 2, 4, 5, 10, 20, 857, 1714, 3428, 3877, 4285, 7754, 8570, 15508, 17140, 19385, 38770, 77540, 3322589, 6645178, 13290356, 16612945, 33225890, 66451780]

約数ペア:

[(1, 66451780), (2, 33225890), (4, 16612945), (5, 13290356), (10, 6645178), (20, 3322589), (857, 77540), (1714, 38770), (3428, 19385), (3877, 17140), (4285, 15508), (7754, 8570)]