522800

素因数分解:

$2^4\times 5^2\times {\mathrm{1307}}^1$

素因数の和:1325

約数の個数: 30

約数和(自身を含む): 1256988

約数和(自身を除く): 734188

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 1307, 2614, 5228, 6535, 10456, 13070, 20912, 26140, 32675, 52280, 65350, 104560, 130700, 261400, 522800]

約数ペア:

[(1, 522800), (2, 261400), (4, 130700), (5, 104560), (8, 65350), (10, 52280), (16, 32675), (20, 26140), (25, 20912), (40, 13070), (50, 10456), (80, 6535), (100, 5228), (200, 2614), (400, 1307)]