20805217190

素因数分解:

$2^1\times 5^1\times {\mathrm{523}}^1\times {\mathrm{3978053}}^1$

素因数の和:3978583

約数の個数: 16

約数和(自身を含む): 37521005328

約数和(自身を除く): 16715788138

約数列:

[1, 2, 5, 10, 523, 1046, 2615, 5230, 3978053, 7956106, 19890265, 39780530, 2080521719, 4161043438, 10402608595, 20805217190]

約数ペア:

[(1, 20805217190), (2, 10402608595), (5, 4161043438), (10, 2080521719), (523, 39780530), (1046, 19890265), (2615, 7956106), (5230, 3978053)]