81480464

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{391733}}^1$

素因数の和:391754

約数の個数: 20

約数和(自身を含む): 170012556

約数和(自身を除く): 88532092

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 391733, 783466, 1566932, 3133864, 5092529, 6267728, 10185058, 20370116, 40740232, 81480464]

約数ペア:

[(1, 81480464), (2, 40740232), (4, 20370116), (8, 10185058), (13, 6267728), (16, 5092529), (26, 3133864), (52, 1566932), (104, 783466), (208, 391733)]