65879620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{80341}}^1$

素因数の和:80391

約数の個数: 24

約数和(自身を含む): 141723288

約数和(自身を除く): 75843668

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 80341, 160682, 321364, 401705, 803410, 1606820, 3293981, 6587962, 13175924, 16469905, 32939810, 65879620]

約数ペア:

[(1, 65879620), (2, 32939810), (4, 16469905), (5, 13175924), (10, 6587962), (20, 3293981), (41, 1606820), (82, 803410), (164, 401705), (205, 321364), (410, 160682), (820, 80341)]