81334672

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{118219}}^1$

素因数の和:118270

約数の個数: 20

約数和(自身を含む): 161252080

約数和(自身を除く): 79917408

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 118219, 236438, 472876, 945752, 1891504, 5083417, 10166834, 20333668, 40667336, 81334672]

約数ペア:

[(1, 81334672), (2, 40667336), (4, 20333668), (8, 10166834), (16, 5083417), (43, 1891504), (86, 945752), (172, 472876), (344, 236438), (688, 118219)]