8722640

素因数分解:

$2^4\times 5^1\times {\mathrm{107}}^1\times {\mathrm{1019}}^1$

素因数の和:1139

約数の個数: 40

約数和(自身を含む): 20489760

約数和(自身を除く): 11767120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 107, 214, 428, 535, 856, 1019, 1070, 1712, 2038, 2140, 4076, 4280, 5095, 8152, 8560, 10190, 16304, 20380, 40760, 81520, 109033, 218066, 436132, 545165, 872264, 1090330, 1744528, 2180660, 4361320, 8722640]

約数ペア:

[(1, 8722640), (2, 4361320), (4, 2180660), (5, 1744528), (8, 1090330), (10, 872264), (16, 545165), (20, 436132), (40, 218066), (80, 109033), (107, 81520), (214, 40760), (428, 20380), (535, 16304), (856, 10190), (1019, 8560), (1070, 8152), (1712, 5095), (2038, 4280), (2140, 4076)]