489486820

素因数分解:

$2^2\times 5^1\times {\mathrm{1721}}^1\times {\mathrm{14221}}^1$

素因数の和:15951

約数の個数: 24

約数和(自身を含む): 1028591928

約数和(自身を除く): 539105108

約数列:

[1, 2, 4, 5, 10, 20, 1721, 3442, 6884, 8605, 14221, 17210, 28442, 34420, 56884, 71105, 142210, 284420, 24474341, 48948682, 97897364, 122371705, 244743410, 489486820]

約数ペア:

[(1, 489486820), (2, 244743410), (4, 122371705), (5, 97897364), (10, 48948682), (20, 24474341), (1721, 284420), (3442, 142210), (6884, 71105), (8605, 56884), (14221, 34420), (17210, 28442)]