38912560

素因数分解:

$2^4\times 5^1\times {\mathrm{486407}}^1$

素因数の和:486420

約数の個数: 20

約数和(自身を含む): 90471888

約数和(自身を除く): 51559328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 486407, 972814, 1945628, 2432035, 3891256, 4864070, 7782512, 9728140, 19456280, 38912560]

約数ペア:

[(1, 38912560), (2, 19456280), (4, 9728140), (5, 7782512), (8, 4864070), (10, 3891256), (16, 2432035), (20, 1945628), (40, 972814), (80, 486407)]