2144080

素因数分解:

$2^4\times 5^1\times {\mathrm{26801}}^1$

素因数の和:26814

約数の個数: 20

約数和(自身を含む): 4985172

約数和(自身を除く): 2841092

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 26801, 53602, 107204, 134005, 214408, 268010, 428816, 536020, 1072040, 2144080]

約数ペア:

[(1, 2144080), (2, 1072040), (4, 536020), (5, 428816), (8, 268010), (10, 214408), (16, 134005), (20, 107204), (40, 53602), (80, 26801)]