256475349

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{16993}}^1$

素因数の和:17058

約数の個数: 32

約数和(自身を含む): 418732160

約数和(自身を除く): 162256811

約数列:

[1, 3, 9, 13, 27, 39, 43, 117, 129, 351, 387, 559, 1161, 1677, 5031, 15093, 16993, 50979, 152937, 220909, 458811, 662727, 730699, 1988181, 2192097, 5964543, 6576291, 9499087, 19728873, 28497261, 85491783, 256475349]

約数ペア:

[(1, 256475349), (3, 85491783), (9, 28497261), (13, 19728873), (27, 9499087), (39, 6576291), (43, 5964543), (117, 2192097), (129, 1988181), (351, 730699), (387, 662727), (559, 458811), (1161, 220909), (1677, 152937), (5031, 50979), (15093, 16993)]