10989080

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{6389}}^1$

素因数の和:6443

約数の個数: 32

約数和(自身を含む): 25304400

約数和(自身を除く): 14315320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 6389, 12778, 25556, 31945, 51112, 63890, 127780, 255560, 274727, 549454, 1098908, 1373635, 2197816, 2747270, 5494540, 10989080]

約数ペア:

[(1, 10989080), (2, 5494540), (4, 2747270), (5, 2197816), (8, 1373635), (10, 1098908), (20, 549454), (40, 274727), (43, 255560), (86, 127780), (172, 63890), (215, 51112), (344, 31945), (430, 25556), (860, 12778), (1720, 6389)]