81217208

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{93139}}^1$

素因数の和:93254

約数の個数: 16

約数和(自身を含む): 153681000

約数和(自身を除く): 72463792

約数列:

[1, 2, 4, 8, 109, 218, 436, 872, 93139, 186278, 372556, 745112, 10152151, 20304302, 40608604, 81217208]

約数ペア:

[(1, 81217208), (2, 40608604), (4, 20304302), (8, 10152151), (109, 745112), (218, 372556), (436, 186278), (872, 93139)]