80807020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{577193}}^1$

素因数の和:577209

約数の個数: 24

約数和(自身を含む): 193937184

約数和(自身を除く): 113130164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 577193, 1154386, 2308772, 2885965, 4040351, 5771930, 8080702, 11543860, 16161404, 20201755, 40403510, 80807020]

約数ペア:

[(1, 80807020), (2, 40403510), (4, 20201755), (5, 16161404), (7, 11543860), (10, 8080702), (14, 5771930), (20, 4040351), (28, 2885965), (35, 2308772), (70, 1154386), (140, 577193)]