80991016

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{235439}}^1$

素因数の和:235488

約数の個数: 16

約数和(自身を含む): 155390400

約数和(自身を除く): 74399384

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 235439, 470878, 941756, 1883512, 10123877, 20247754, 40495508, 80991016]

約数ペア:

[(1, 80991016), (2, 40495508), (4, 20247754), (8, 10123877), (43, 1883512), (86, 941756), (172, 470878), (344, 235439)]