20445130

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{18757}}^1$

素因数の和:18873

約数の個数: 16

約数和(自身を含む): 37140840

約数和(自身を除く): 16695710

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 18757, 37514, 93785, 187570, 2044513, 4089026, 10222565, 20445130]

約数ペア:

[(1, 20445130), (2, 10222565), (5, 4089026), (10, 2044513), (109, 187570), (218, 93785), (545, 37514), (1090, 18757)]