28684400

素因数分解:

$2^4\times 5^2\times {\mathrm{71711}}^1$

素因数の和:71729

約数の個数: 30

約数和(自身を含む): 68915232

約数和(自身を除く): 40230832

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 71711, 143422, 286844, 358555, 573688, 717110, 1147376, 1434220, 1792775, 2868440, 3585550, 5736880, 7171100, 14342200, 28684400]

約数ペア:

[(1, 28684400), (2, 14342200), (4, 7171100), (5, 5736880), (8, 3585550), (10, 2868440), (16, 1792775), (20, 1434220), (25, 1147376), (40, 717110), (50, 573688), (80, 358555), (100, 286844), (200, 143422), (400, 71711)]