81777488

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{393161}}^1$

素因数の和:393182

約数の個数: 20

約数和(自身を含む): 170632308

約数和(自身を除く): 88854820

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 393161, 786322, 1572644, 3145288, 5111093, 6290576, 10222186, 20444372, 40888744, 81777488]

約数ペア:

[(1, 81777488), (2, 40888744), (4, 20444372), (8, 10222186), (13, 6290576), (16, 5111093), (26, 3145288), (52, 1572644), (104, 786322), (208, 393161)]