129328840

素因数分解:

$2^3\times 5^1\times {\mathrm{3233221}}^1$

素因数の和:3233232

約数の個数: 16

約数和(自身を含む): 290989980

約数和(自身を除く): 161661140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3233221, 6466442, 12932884, 16166105, 25865768, 32332210, 64664420, 129328840]

約数ペア:

[(1, 129328840), (2, 64664420), (4, 32332210), (5, 25865768), (8, 16166105), (10, 12932884), (20, 6466442), (40, 3233221)]