388670680

素因数分解:

$2^3\times 5^1\times {\mathrm{9716767}}^1$

素因数の和:9716778

約数の個数: 16

約数和(自身を含む): 874509120

約数和(自身を除く): 485838440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9716767, 19433534, 38867068, 48583835, 77734136, 97167670, 194335340, 388670680]

約数ペア:

[(1, 388670680), (2, 194335340), (4, 97167670), (5, 77734136), (8, 48583835), (10, 38867068), (20, 19433534), (40, 9716767)]