129416120

素因数分解:

$2^3\times 5^1\times {\mathrm{3235403}}^1$

素因数の和:3235414

約数の個数: 16

約数和(自身を含む): 291186360

約数和(自身を除く): 161770240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3235403, 6470806, 12941612, 16177015, 25883224, 32354030, 64708060, 129416120]

約数ペア:

[(1, 129416120), (2, 64708060), (4, 32354030), (5, 25883224), (8, 16177015), (10, 12941612), (20, 6470806), (40, 3235403)]