28398800

素因数分解:

$2^4\times 5^2\times {\mathrm{70997}}^1$

素因数の和:71015

約数の個数: 30

約数和(自身を含む): 68229078

約数和(自身を除く): 39830278

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 70997, 141994, 283988, 354985, 567976, 709970, 1135952, 1419940, 1774925, 2839880, 3549850, 5679760, 7099700, 14199400, 28398800]

約数ペア:

[(1, 28398800), (2, 14199400), (4, 7099700), (5, 5679760), (8, 3549850), (10, 2839880), (16, 1774925), (20, 1419940), (25, 1135952), (40, 709970), (50, 567976), (80, 354985), (100, 283988), (200, 141994), (400, 70997)]