80906140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{577901}}^1$

素因数の和:577917

約数の個数: 24

約数和(自身を含む): 194175072

約数和(自身を除く): 113268932

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 577901, 1155802, 2311604, 2889505, 4045307, 5779010, 8090614, 11558020, 16181228, 20226535, 40453070, 80906140]

約数ペア:

[(1, 80906140), (2, 40453070), (4, 20226535), (5, 16181228), (7, 11558020), (10, 8090614), (14, 5779010), (20, 4045307), (28, 2889505), (35, 2311604), (70, 1155802), (140, 577901)]