8721320

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{4639}}^1$

素因数の和:4697

約数の個数: 32

約数和(自身を含む): 20044800

約数和(自身を除く): 11323480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 4639, 9278, 18556, 23195, 37112, 46390, 92780, 185560, 218033, 436066, 872132, 1090165, 1744264, 2180330, 4360660, 8721320]

約数ペア:

[(1, 8721320), (2, 4360660), (4, 2180330), (5, 1744264), (8, 1090165), (10, 872132), (20, 436066), (40, 218033), (47, 185560), (94, 92780), (188, 46390), (235, 37112), (376, 23195), (470, 18556), (940, 9278), (1880, 4639)]