81088918

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1\times {\mathrm{2579}}^1$

素因数の和:2859

約数の個数: 16

約数和(自身を含む): 123840000

約数和(自身を除く): 42751082

約数列:

[1, 2, 79, 158, 199, 398, 2579, 5158, 15721, 31442, 203741, 407482, 513221, 1026442, 40544459, 81088918]

約数ペア:

[(1, 81088918), (2, 40544459), (79, 1026442), (158, 513221), (199, 407482), (398, 203741), (2579, 31442), (5158, 15721)]