15964280

素因数分解:

$2^3\times 5^1\times {\mathrm{399107}}^1$

素因数の和:399118

約数の個数: 16

約数和(自身を含む): 35919720

約数和(自身を除く): 19955440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 399107, 798214, 1596428, 1995535, 3192856, 3991070, 7982140, 15964280]

約数ペア:

[(1, 15964280), (2, 7982140), (4, 3991070), (5, 3192856), (8, 1995535), (10, 1596428), (20, 798214), (40, 399107)]