80640008

素因数分解:

$2^3\times {\mathrm{263}}^1\times {\mathrm{38327}}^1$

素因数の和:38596

約数の個数: 16

約数和(自身を含む): 151778880

約数和(自身を除く): 71138872

約数列:

[1, 2, 4, 8, 263, 526, 1052, 2104, 38327, 76654, 153308, 306616, 10080001, 20160002, 40320004, 80640008]

約数ペア:

[(1, 80640008), (2, 40320004), (4, 20160002), (8, 10080001), (263, 306616), (526, 153308), (1052, 76654), (2104, 38327)]