81263555

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{269}}^1\times {\mathrm{1949}}^1$

素因数の和:2254

約数の個数: 16

約数和(自身を含む): 101088000

約数和(自身を除く): 19824445

約数列:

[1, 5, 31, 155, 269, 1345, 1949, 8339, 9745, 41695, 60419, 302095, 524281, 2621405, 16252711, 81263555]

約数ペア:

[(1, 81263555), (5, 16252711), (31, 2621405), (155, 524281), (269, 302095), (1345, 60419), (1949, 41695), (8339, 9745)]