20090742010

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{25431319}}^1$

素因数の和:25431405

約数の個数: 16

約数和(自身を含む): 36621100800

約数和(自身を除く): 16530358790

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 25431319, 50862638, 127156595, 254313190, 2009074201, 4018148402, 10045371005, 20090742010]

約数ペア:

[(1, 20090742010), (2, 10045371005), (5, 4018148402), (10, 2009074201), (79, 254313190), (158, 127156595), (395, 50862638), (790, 25431319)]