991816

素因数分解:

$2^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1$

素因数の和:301

約数の個数: 32

約数和(自身を含む): 2160000

約数和(自身を除く): 1168184

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 89, 178, 199, 356, 398, 623, 712, 796, 1246, 1393, 1592, 2492, 2786, 4984, 5572, 11144, 17711, 35422, 70844, 123977, 141688, 247954, 495908, 991816]

約数ペア:

[(1, 991816), (2, 495908), (4, 247954), (7, 141688), (8, 123977), (14, 70844), (28, 35422), (56, 17711), (89, 11144), (178, 5572), (199, 4984), (356, 2786), (398, 2492), (623, 1592), (712, 1393), (796, 1246)]