81144080

素因数分解:

$2^4\times 5^1\times {\mathrm{1014301}}^1$

素因数の和:1014314

約数の個数: 20

約数和(自身を含む): 188660172

約数和(自身を除く): 107516092

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1014301, 2028602, 4057204, 5071505, 8114408, 10143010, 16228816, 20286020, 40572040, 81144080]

約数ペア:

[(1, 81144080), (2, 40572040), (4, 20286020), (5, 16228816), (8, 10143010), (10, 8114408), (16, 5071505), (20, 4057204), (40, 2028602), (80, 1014301)]