1378660180

素因数分解:

$2^2\times 5^1\times {\mathrm{68933009}}^1$

素因数の和:68933018

約数の個数: 12

約数和(自身を含む): 2895186420

約数和(自身を除く): 1516526240

約数列:

[1, 2, 4, 5, 10, 20, 68933009, 137866018, 275732036, 344665045, 689330090, 1378660180]

約数ペア:

[(1, 1378660180), (2, 689330090), (4, 344665045), (5, 275732036), (10, 137866018), (20, 68933009)]