1285455

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^2$

素因数の和:167

約数の個数: 24

約数和(自身を含む): 2208816

約数和(自身を除く): 923361

約数列:

[1, 3, 5, 15, 17, 51, 71, 85, 213, 255, 355, 1065, 1207, 3621, 5041, 6035, 15123, 18105, 25205, 75615, 85697, 257091, 428485, 1285455]

約数ペア:

[(1, 1285455), (3, 428485), (5, 257091), (15, 85697), (17, 75615), (51, 25205), (71, 18105), (85, 15123), (213, 6035), (255, 5041), (355, 3621), (1065, 1207)]