263108495

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{311371}}^1$

素因数の和:311402

約数の個数: 12

約数和(自身を含む): 341886456

約数和(自身を除く): 78777961

約数列:

[1, 5, 13, 65, 169, 845, 311371, 1556855, 4047823, 20239115, 52621699, 263108495]

約数ペア:

[(1, 263108495), (5, 52621699), (13, 20239115), (65, 4047823), (169, 1556855), (845, 311371)]