81781060

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{99733}}^1$

素因数の和:99783

約数の個数: 24

約数和(自身を含む): 175930776

約数和(自身を除く): 94149716

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 99733, 199466, 398932, 498665, 997330, 1994660, 4089053, 8178106, 16356212, 20445265, 40890530, 81781060]

約数ペア:

[(1, 81781060), (2, 40890530), (4, 20445265), (5, 16356212), (10, 8178106), (20, 4089053), (41, 1994660), (82, 997330), (164, 498665), (205, 398932), (410, 199466), (820, 99733)]