81968290

素因数分解:

$2^1\times 5^1\times {\mathrm{443}}^1\times {\mathrm{18503}}^1$

素因数の和:18953

約数の個数: 16

約数和(自身を含む): 147883968

約数和(自身を除く): 65915678

約数列:

[1, 2, 5, 10, 443, 886, 2215, 4430, 18503, 37006, 92515, 185030, 8196829, 16393658, 40984145, 81968290]

約数ペア:

[(1, 81968290), (2, 40984145), (5, 16393658), (10, 8196829), (443, 185030), (886, 92515), (2215, 37006), (4430, 18503)]