81199600

素因数分解:

$2^4\times 5^2\times {\mathrm{202999}}^1$

素因数の和:203017

約数の個数: 30

約数和(自身を含む): 195083000

約数和(自身を除く): 113883400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 202999, 405998, 811996, 1014995, 1623992, 2029990, 3247984, 4059980, 5074975, 8119960, 10149950, 16239920, 20299900, 40599800, 81199600]

約数ペア:

[(1, 81199600), (2, 40599800), (4, 20299900), (5, 16239920), (8, 10149950), (10, 8119960), (16, 5074975), (20, 4059980), (25, 3247984), (40, 2029990), (50, 1623992), (80, 1014995), (100, 811996), (200, 405998), (400, 202999)]