81190160

素因数分解:

$2^4\times 5^1\times {\mathrm{1014877}}^1$

素因数の和:1014890

約数の個数: 20

約数和(自身を含む): 188767308

約数和(自身を除く): 107577148

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1014877, 2029754, 4059508, 5074385, 8119016, 10148770, 16238032, 20297540, 40595080, 81190160]

約数ペア:

[(1, 81190160), (2, 40595080), (4, 20297540), (5, 16238032), (8, 10148770), (10, 8119016), (16, 5074385), (20, 4059508), (40, 2029754), (80, 1014877)]