81426890

素因数分解:

$2^1\times 5^1\times {\mathrm{2609}}^1\times {\mathrm{3121}}^1$

素因数の和:5737

約数の個数: 16

約数和(自身を含む): 146671560

約数和(自身を除く): 65244670

約数列:

[1, 2, 5, 10, 2609, 3121, 5218, 6242, 13045, 15605, 26090, 31210, 8142689, 16285378, 40713445, 81426890]

約数ペア:

[(1, 81426890), (2, 40713445), (5, 16285378), (10, 8142689), (2609, 31210), (3121, 26090), (5218, 15605), (6242, 13045)]