51128780

素因数分解:

$2^2\times 5^1\times {\mathrm{359}}^1\times {\mathrm{7121}}^1$

素因数の和:7489

約数の個数: 24

約数和(自身を含む): 107684640

約数和(自身を除く): 56555860

約数列:

[1, 2, 4, 5, 10, 20, 359, 718, 1436, 1795, 3590, 7121, 7180, 14242, 28484, 35605, 71210, 142420, 2556439, 5112878, 10225756, 12782195, 25564390, 51128780]

約数ペア:

[(1, 51128780), (2, 25564390), (4, 12782195), (5, 10225756), (10, 5112878), (20, 2556439), (359, 142420), (718, 71210), (1436, 35605), (1795, 28484), (3590, 14242), (7121, 7180)]