7120220

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1789}}^1$

素因数の和:1997

約数の個数: 24

約数和(自身を含む): 15036000

約数和(自身を除く): 7915780

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1789, 1990, 3578, 3980, 7156, 8945, 17890, 35780, 356011, 712022, 1424044, 1780055, 3560110, 7120220]

約数ペア:

[(1, 7120220), (2, 3560110), (4, 1780055), (5, 1424044), (10, 712022), (20, 356011), (199, 35780), (398, 17890), (796, 8945), (995, 7156), (1789, 3980), (1990, 3578)]