8641588880

素因数分解:

$2^4\times 5^1\times {\mathrm{108019861}}^1$

素因数の和:108019874

約数の個数: 20

約数和(自身を含む): 20091694332

約数和(自身を除く): 11450105452

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 108019861, 216039722, 432079444, 540099305, 864158888, 1080198610, 1728317776, 2160397220, 4320794440, 8641588880]

約数ペア:

[(1, 8641588880), (2, 4320794440), (4, 2160397220), (5, 1728317776), (8, 1080198610), (10, 864158888), (16, 540099305), (20, 432079444), (40, 216039722), (80, 108019861)]