20743790

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{19031}}^1$

素因数の和:19147

約数の個数: 16

約数和(自身を含む): 37683360

約数和(自身を除く): 16939570

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 19031, 38062, 95155, 190310, 2074379, 4148758, 10371895, 20743790]

約数ペア:

[(1, 20743790), (2, 10371895), (5, 4148758), (10, 2074379), (109, 190310), (218, 95155), (545, 38062), (1090, 19031)]