8445560

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1061}}^1$

素因数の和:1271

約数の個数: 32

約数和(自身を含む): 19116000

約数和(自身を除く): 10670440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1061, 1592, 1990, 2122, 3980, 4244, 5305, 7960, 8488, 10610, 21220, 42440, 211139, 422278, 844556, 1055695, 1689112, 2111390, 4222780, 8445560]

約数ペア:

[(1, 8445560), (2, 4222780), (4, 2111390), (5, 1689112), (8, 1055695), (10, 844556), (20, 422278), (40, 211139), (199, 42440), (398, 21220), (796, 10610), (995, 8488), (1061, 7960), (1592, 5305), (1990, 4244), (2122, 3980)]