81361790

素因数分解:

$2^1\times 5^1\times {\mathrm{571}}^1\times {\mathrm{14249}}^1$

素因数の和:14827

約数の個数: 16

約数和(自身を含む): 146718000

約数和(自身を除く): 65356210

約数列:

[1, 2, 5, 10, 571, 1142, 2855, 5710, 14249, 28498, 71245, 142490, 8136179, 16272358, 40680895, 81361790]

約数ペア:

[(1, 81361790), (2, 40680895), (5, 16272358), (10, 8136179), (571, 142490), (1142, 71245), (2855, 28498), (5710, 14249)]