19456280

素因数分解:

$2^3\times 5^1\times {\mathrm{486407}}^1$

素因数の和:486418

約数の個数: 16

約数和(自身を含む): 43776720

約数和(自身を除く): 24320440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 486407, 972814, 1945628, 2432035, 3891256, 4864070, 9728140, 19456280]

約数ペア:

[(1, 19456280), (2, 9728140), (4, 4864070), (5, 3891256), (8, 2432035), (10, 1945628), (20, 972814), (40, 486407)]