81140185

素因数分解:

$5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{15559}}^1$

素因数の和:15720

約数の個数: 16

約数和(自身を含む): 112032000

約数和(自身を除く): 30891815

約数列:

[1, 5, 7, 35, 149, 745, 1043, 5215, 15559, 77795, 108913, 544565, 2318291, 11591455, 16228037, 81140185]

約数ペア:

[(1, 81140185), (5, 16228037), (7, 11591455), (35, 2318291), (149, 544565), (745, 108913), (1043, 77795), (5215, 15559)]