80870188

素因数分解:

$2^2\times 7^2\times {\mathrm{412603}}^1$

素因数の和:412621

約数の個数: 18

約数和(自身を含む): 164628996

約数和(自身を除く): 83758808

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 412603, 825206, 1650412, 2888221, 5776442, 11552884, 20217547, 40435094, 80870188]

約数ペア:

[(1, 80870188), (2, 40435094), (4, 20217547), (7, 11552884), (14, 5776442), (28, 2888221), (49, 1650412), (98, 825206), (196, 412603)]