81161266

素因数分解:

$2^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1\times {\mathrm{2131}}^1$

素因数の和:2409

約数の個数: 16

約数和(自身を含む): 123570720

約数和(自身を除く): 42409454

約数列:

[1, 2, 137, 139, 274, 278, 2131, 4262, 19043, 38086, 291947, 296209, 583894, 592418, 40580633, 81161266]

約数ペア:

[(1, 81161266), (2, 40580633), (137, 592418), (139, 583894), (274, 296209), (278, 291947), (2131, 38086), (4262, 19043)]