266979640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{351289}}^1$

素因数の和:351319

約数の個数: 32

約数和(自身を含む): 632322000

約数和(自身を除く): 365342360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 351289, 702578, 1405156, 1756445, 2810312, 3512890, 6674491, 7025780, 13348982, 14051560, 26697964, 33372455, 53395928, 66744910, 133489820, 266979640]

約数ペア:

[(1, 266979640), (2, 133489820), (4, 66744910), (5, 53395928), (8, 33372455), (10, 26697964), (19, 14051560), (20, 13348982), (38, 7025780), (40, 6674491), (76, 3512890), (95, 2810312), (152, 1756445), (190, 1405156), (380, 702578), (760, 351289)]