80643056

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{387707}}^1$

素因数の和:387728

約数の個数: 20

約数和(自身を含む): 168265272

約数和(自身を除く): 87622216

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 387707, 775414, 1550828, 3101656, 5040191, 6203312, 10080382, 20160764, 40321528, 80643056]

約数ペア:

[(1, 80643056), (2, 40321528), (4, 20160764), (8, 10080382), (13, 6203312), (16, 5040191), (26, 3101656), (52, 1550828), (104, 775414), (208, 387707)]