81522640

素因数分解:

$2^4\times 5^1\times {\mathrm{1019033}}^1$

素因数の和:1019046

約数の個数: 20

約数和(自身を含む): 189540324

約数和(自身を除く): 108017684

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1019033, 2038066, 4076132, 5095165, 8152264, 10190330, 16304528, 20380660, 40761320, 81522640]

約数ペア:

[(1, 81522640), (2, 40761320), (4, 20380660), (5, 16304528), (8, 10190330), (10, 8152264), (16, 5095165), (20, 4076132), (40, 2038066), (80, 1019033)]