81379165

素因数分解:

$5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{17749}}^1$

素因数の和:17892

約数の個数: 16

約数和(自身を含む): 112464000

約数和(自身を除く): 31084835

約数列:

[1, 5, 7, 35, 131, 655, 917, 4585, 17749, 88745, 124243, 621215, 2325119, 11625595, 16275833, 81379165]

約数ペア:

[(1, 81379165), (5, 16275833), (7, 11625595), (35, 2325119), (131, 621215), (655, 124243), (917, 88745), (4585, 17749)]