1380800.00000000

素因数分解:

$2^4\times 5^2\times {\mathrm{71429}}^1$

素因数の和:71447

約数の個数: 30

約数和(自身を含む): 68644230

約数和(自身を除く): 40072630

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 71429, 142858, 285716, 357145, 571432, 714290, 1142864, 1428580, 1785725, 2857160, 3571450, 5714320, 7142900, 14285800, 28571600]

約数ペア:

[(1, 28571600), (2, 14285800), (4, 7142900), (5, 5714320), (8, 3571450), (10, 2857160), (16, 1785725), (20, 1428580), (25, 1142864), (40, 714290), (50, 571432), (80, 357145), (100, 285716), (200, 142858), (400, 71429)]