81624460

素因数分解:

$2^2\times 5^1\times {\mathrm{1283}}^1\times {\mathrm{3181}}^1$

素因数の和:4473

約数の個数: 24

約数和(自身を含む): 171598896

約数和(自身を除く): 89974436

約数列:

[1, 2, 4, 5, 10, 20, 1283, 2566, 3181, 5132, 6362, 6415, 12724, 12830, 15905, 25660, 31810, 63620, 4081223, 8162446, 16324892, 20406115, 40812230, 81624460]

約数ペア:

[(1, 81624460), (2, 40812230), (4, 20406115), (5, 16324892), (10, 8162446), (20, 4081223), (1283, 63620), (2566, 31810), (3181, 25660), (5132, 15905), (6362, 12830), (6415, 12724)]