19975600

素因数分解:

$2^4\times 5^2\times {\mathrm{49939}}^1$

素因数の和:49957

約数の個数: 30

約数和(自身を含む): 47992340

約数和(自身を除く): 28016740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 49939, 99878, 199756, 249695, 399512, 499390, 799024, 998780, 1248475, 1997560, 2496950, 3995120, 4993900, 9987800, 19975600]

約数ペア:

[(1, 19975600), (2, 9987800), (4, 4993900), (5, 3995120), (8, 2496950), (10, 1997560), (16, 1248475), (20, 998780), (25, 799024), (40, 499390), (50, 399512), (80, 249695), (100, 199756), (200, 99878), (400, 49939)]