81586540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{582761}}^1$

素因数の和:582777

約数の個数: 24

約数和(自身を含む): 195808032

約数和(自身を除く): 114221492

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 582761, 1165522, 2331044, 2913805, 4079327, 5827610, 8158654, 11655220, 16317308, 20396635, 40793270, 81586540]

約数ペア:

[(1, 81586540), (2, 40793270), (4, 20396635), (5, 16317308), (7, 11655220), (10, 8158654), (14, 5827610), (20, 4079327), (28, 2913805), (35, 2331044), (70, 1165522), (140, 582761)]