289917815

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{313}}^1\times {\mathrm{1531}}^1$

素因数の和:1871

約数の個数: 24

約数和(自身を含む): 383876304

約数和(自身を除く): 93958489

約数列:

[1, 5, 11, 55, 121, 313, 605, 1531, 1565, 3443, 7655, 16841, 17215, 37873, 84205, 185251, 189365, 479203, 926255, 2396015, 5271233, 26356165, 57983563, 289917815]

約数ペア:

[(1, 289917815), (5, 57983563), (11, 26356165), (55, 5271233), (121, 2396015), (313, 926255), (605, 479203), (1531, 189365), (1565, 185251), (3443, 84205), (7655, 37873), (16841, 17215)]