217616052020

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{122256209}}^1$

素因数の和:122256307

約数の個数: 24

約数和(自身を含む): 462128473800

約数和(自身を除く): 244512421780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 122256209, 244512418, 489024836, 611281045, 1222562090, 2445124180, 10880802601, 21761605202, 43523210404, 54404013005, 108808026010, 217616052020]

約数ペア:

[(1, 217616052020), (2, 108808026010), (4, 54404013005), (5, 43523210404), (10, 21761605202), (20, 10880802601), (89, 2445124180), (178, 1222562090), (356, 611281045), (445, 489024836), (890, 244512418), (1780, 122256209)]