1296040

素因数分解:

$2^3\times 5^1\times {\mathrm{32401}}^1$

素因数の和:32412

約数の個数: 16

約数和(自身を含む): 2916180

約数和(自身を除く): 1620140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 32401, 64802, 129604, 162005, 259208, 324010, 648020, 1296040]

約数ペア:

[(1, 1296040), (2, 648020), (4, 324010), (5, 259208), (8, 162005), (10, 129604), (20, 64802), (40, 32401)]