81271352

素因数分解:

$2^3\times {\mathrm{131}}^1\times {\mathrm{77549}}^1$

素因数の和:77686

約数の個数: 16

約数和(自身を含む): 153549000

約数和(自身を除く): 72277648

約数列:

[1, 2, 4, 8, 131, 262, 524, 1048, 77549, 155098, 310196, 620392, 10158919, 20317838, 40635676, 81271352]

約数ペア:

[(1, 81271352), (2, 40635676), (4, 20317838), (8, 10158919), (131, 620392), (262, 310196), (524, 155098), (1048, 77549)]