129344540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{497479}}^1$

素因数の和:497501

約数の個数: 24

約数和(自身を含む): 292518240

約数和(自身を除く): 163173700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 497479, 994958, 1989916, 2487395, 4974790, 6467227, 9949580, 12934454, 25868908, 32336135, 64672270, 129344540]

約数ペア:

[(1, 129344540), (2, 64672270), (4, 32336135), (5, 25868908), (10, 12934454), (13, 9949580), (20, 6467227), (26, 4974790), (52, 2487395), (65, 1989916), (130, 994958), (260, 497479)]