81885815

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{36313}}^1$

素因数の和:36370

約数の個数: 16

約数和(自身を含む): 109813536

約数和(自身を除く): 27927721

約数列:

[1, 5, 11, 41, 55, 205, 451, 2255, 36313, 181565, 399443, 1488833, 1997215, 7444165, 16377163, 81885815]

約数ペア:

[(1, 81885815), (5, 16377163), (11, 7444165), (41, 1997215), (55, 1488833), (205, 399443), (451, 181565), (2255, 36313)]