8218160

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2389}}^1$

素因数の和:2445

約数の個数: 40

約数和(自身を含む): 19559760

約数和(自身を除く): 11341600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 2389, 3440, 4778, 9556, 11945, 19112, 23890, 38224, 47780, 95560, 102727, 191120, 205454, 410908, 513635, 821816, 1027270, 1643632, 2054540, 4109080, 8218160]

約数ペア:

[(1, 8218160), (2, 4109080), (4, 2054540), (5, 1643632), (8, 1027270), (10, 821816), (16, 513635), (20, 410908), (40, 205454), (43, 191120), (80, 102727), (86, 95560), (172, 47780), (215, 38224), (344, 23890), (430, 19112), (688, 11945), (860, 9556), (1720, 4778), (2389, 3440)]