78816868

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{116593}}^1$

素因数の和:116623

約数の個数: 18

約数和(自身を含む): 149356914

約数和(自身を除く): 70540046

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 116593, 233186, 466372, 1515709, 3031418, 6062836, 19704217, 39408434, 78816868]

約数ペア:

[(1, 78816868), (2, 39408434), (4, 19704217), (13, 6062836), (26, 3031418), (52, 1515709), (169, 466372), (338, 233186), (676, 116593)]