90637640

素因数分解:

$2^3\times 5^1\times {\mathrm{2265941}}^1$

素因数の和:2265952

約数の個数: 16

約数和(自身を含む): 203934780

約数和(自身を除く): 113297140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2265941, 4531882, 9063764, 11329705, 18127528, 22659410, 45318820, 90637640]

約数ペア:

[(1, 90637640), (2, 45318820), (4, 22659410), (5, 18127528), (8, 11329705), (10, 9063764), (20, 4531882), (40, 2265941)]