388794680

素因数分解:

$2^3\times 5^1\times {\mathrm{9719867}}^1$

素因数の和:9719878

約数の個数: 16

約数和(自身を含む): 874788120

約数和(自身を除く): 485993440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 9719867, 19439734, 38879468, 48599335, 77758936, 97198670, 194397340, 388794680]

約数ペア:

[(1, 388794680), (2, 194397340), (4, 97198670), (5, 77758936), (8, 48599335), (10, 38879468), (20, 19439734), (40, 9719867)]