8728880

素因数分解:

$2^4\times 5^1\times {\mathrm{109111}}^1$

素因数の和:109124

約数の個数: 20

約数和(自身を含む): 20294832

約数和(自身を除く): 11565952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109111, 218222, 436444, 545555, 872888, 1091110, 1745776, 2182220, 4364440, 8728880]

約数ペア:

[(1, 8728880), (2, 4364440), (4, 2182220), (5, 1745776), (8, 1091110), (10, 872888), (16, 545555), (20, 436444), (40, 218222), (80, 109111)]