19807270

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{40423}}^1$

素因数の和:40444

約数の個数: 24

約数和(自身を含む): 41475024

約数和(自身を除く): 21667754

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 40423, 80846, 202115, 282961, 404230, 565922, 1414805, 1980727, 2829610, 3961454, 9903635, 19807270]

約数ペア:

[(1, 19807270), (2, 9903635), (5, 3961454), (7, 2829610), (10, 1980727), (14, 1414805), (35, 565922), (49, 404230), (70, 282961), (98, 202115), (245, 80846), (490, 40423)]