8911220

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{2239}}^1$

素因数の和:2447

約数の個数: 24

約数和(自身を含む): 18816000

約数和(自身を除く): 9904780

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 2239, 3980, 4478, 8956, 11195, 22390, 44780, 445561, 891122, 1782244, 2227805, 4455610, 8911220]

約数ペア:

[(1, 8911220), (2, 4455610), (4, 2227805), (5, 1782244), (10, 891122), (20, 445561), (199, 44780), (398, 22390), (796, 11195), (995, 8956), (1990, 4478), (2239, 3980)]