18964820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{135463}}^1$

素因数の和:135479

約数の個数: 24

約数和(自身を含む): 45515904

約数和(自身を除く): 26551084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 135463, 270926, 541852, 677315, 948241, 1354630, 1896482, 2709260, 3792964, 4741205, 9482410, 18964820]

約数ペア:

[(1, 18964820), (2, 9482410), (4, 4741205), (5, 3792964), (7, 2709260), (10, 1896482), (14, 1354630), (20, 948241), (28, 677315), (35, 541852), (70, 270926), (140, 135463)]