219625820

素因数分解:

$2^2\times 5^1\times {\mathrm{1423}}^1\times {\mathrm{7717}}^1$

素因数の和:9149

約数の個数: 24

約数和(自身を含む): 461598144

約数和(自身を除く): 241972324

約数列:

[1, 2, 4, 5, 10, 20, 1423, 2846, 5692, 7115, 7717, 14230, 15434, 28460, 30868, 38585, 77170, 154340, 10981291, 21962582, 43925164, 54906455, 109812910, 219625820]

約数ペア:

[(1, 219625820), (2, 109812910), (4, 54906455), (5, 43925164), (10, 21962582), (20, 10981291), (1423, 154340), (2846, 77170), (5692, 38585), (7115, 30868), (7717, 28460), (14230, 15434)]