80780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{577}}^1$

素因数の和:593

約数の個数: 24

約数和(自身を含む): 194208

約数和(自身を除く): 113428

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 577, 1154, 2308, 2885, 4039, 5770, 8078, 11540, 16156, 20195, 40390, 80780]

約数ペア:

[(1, 80780), (2, 40390), (4, 20195), (5, 16156), (7, 11540), (10, 8078), (14, 5770), (20, 4039), (28, 2885), (35, 2308), (70, 1154), (140, 577)]