9872560

素因数分解:

$2^4\times 5^1\times {\mathrm{123407}}^1$

素因数の和:123420

約数の個数: 20

約数和(自身を含む): 22953888

約数和(自身を除く): 13081328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 123407, 246814, 493628, 617035, 987256, 1234070, 1974512, 2468140, 4936280, 9872560]

約数ペア:

[(1, 9872560), (2, 4936280), (4, 2468140), (5, 1974512), (8, 1234070), (10, 987256), (16, 617035), (20, 493628), (40, 246814), (80, 123407)]