161564518

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{9901}}^1$

素因数の和:10143

約数の個数: 16

約数和(自身を含む): 249530400

約数和(自身を除く): 87965882

約数列:

[1, 2, 41, 82, 199, 398, 8159, 9901, 16318, 19802, 405941, 811882, 1970299, 3940598, 80782259, 161564518]

約数ペア:

[(1, 161564518), (2, 80782259), (41, 3940598), (82, 1970299), (199, 811882), (398, 405941), (8159, 19802), (9901, 16318)]