81141140

素因数分解:

$2^2\times 5^1\times {\mathrm{859}}^1\times {\mathrm{4723}}^1$

素因数の和:5591

約数の個数: 24

約数和(自身を含む): 170630880

約数和(自身を除く): 89489740

約数列:

[1, 2, 4, 5, 10, 20, 859, 1718, 3436, 4295, 4723, 8590, 9446, 17180, 18892, 23615, 47230, 94460, 4057057, 8114114, 16228228, 20285285, 40570570, 81141140]

約数ペア:

[(1, 81141140), (2, 40570570), (4, 20285285), (5, 16228228), (10, 8114114), (20, 4057057), (859, 94460), (1718, 47230), (3436, 23615), (4295, 18892), (4723, 17180), (8590, 9446)]