1285480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{4591}}^1$

素因数の和:4609

約数の個数: 32

約数和(自身を含む): 3306240

約数和(自身を除く): 2020760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 4591, 9182, 18364, 22955, 32137, 36728, 45910, 64274, 91820, 128548, 160685, 183640, 257096, 321370, 642740, 1285480]

約数ペア:

[(1, 1285480), (2, 642740), (4, 321370), (5, 257096), (7, 183640), (8, 160685), (10, 128548), (14, 91820), (20, 64274), (28, 45910), (35, 36728), (40, 32137), (56, 22955), (70, 18364), (140, 9182), (280, 4591)]