19678925

素因数分解:

$5^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{809}}^1$

素因数の和:965

約数の個数: 24

約数和(自身を含む): 28123200

約数和(自身を除く): 8444275

約数列:

[1, 5, 7, 25, 35, 139, 175, 695, 809, 973, 3475, 4045, 4865, 5663, 20225, 24325, 28315, 112451, 141575, 562255, 787157, 2811275, 3935785, 19678925]

約数ペア:

[(1, 19678925), (5, 3935785), (7, 2811275), (25, 787157), (35, 562255), (139, 141575), (175, 112451), (695, 28315), (809, 24325), (973, 20225), (3475, 5663), (4045, 4865)]