439228420

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{85453}}^1$

素因数の和:85719

約数の個数: 24

約数和(自身を含む): 925979544

約数和(自身を除く): 486751124

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 5140, 85453, 170906, 341812, 427265, 854530, 1709060, 21961421, 43922842, 87845684, 109807105, 219614210, 439228420]

約数ペア:

[(1, 439228420), (2, 219614210), (4, 109807105), (5, 87845684), (10, 43922842), (20, 21961421), (257, 1709060), (514, 854530), (1028, 427265), (1285, 341812), (2570, 170906), (5140, 85453)]