71437580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{87119}}^1$

素因数の和:87169

約数の個数: 24

約数和(自身を含む): 153679680

約数和(自身を除く): 82242100

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 87119, 174238, 348476, 435595, 871190, 1742380, 3571879, 7143758, 14287516, 17859395, 35718790, 71437580]

約数ペア:

[(1, 71437580), (2, 35718790), (4, 17859395), (5, 14287516), (10, 7143758), (20, 3571879), (41, 1742380), (82, 871190), (164, 435595), (205, 348476), (410, 174238), (820, 87119)]