80457640

素因数分解:

$2^3\times 5^1\times {\mathrm{2011441}}^1$

素因数の和:2011452

約数の個数: 16

約数和(自身を含む): 181029780

約数和(自身を除く): 100572140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2011441, 4022882, 8045764, 10057205, 16091528, 20114410, 40228820, 80457640]

約数ペア:

[(1, 80457640), (2, 40228820), (4, 20114410), (5, 16091528), (8, 10057205), (10, 8045764), (20, 4022882), (40, 2011441)]