28465340

素因数分解:

$2^2\times 5^1\times {\mathrm{827}}^1\times {\mathrm{1721}}^1$

素因数の和:2557

約数の個数: 24

約数和(自身を含む): 59884272

約数和(自身を除く): 31418932

約数列:

[1, 2, 4, 5, 10, 20, 827, 1654, 1721, 3308, 3442, 4135, 6884, 8270, 8605, 16540, 17210, 34420, 1423267, 2846534, 5693068, 7116335, 14232670, 28465340]

約数ペア:

[(1, 28465340), (2, 14232670), (4, 7116335), (5, 5693068), (10, 2846534), (20, 1423267), (827, 34420), (1654, 17210), (1721, 16540), (3308, 8605), (3442, 8270), (4135, 6884)]