99878000

素因数分解:

$2^4\times 5^3\times {\mathrm{49939}}^1$

素因数の和:49962

約数の個数: 40

約数和(自身を含む): 241509840

約数和(自身を除く): 141631840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 1000, 2000, 49939, 99878, 199756, 249695, 399512, 499390, 799024, 998780, 1248475, 1997560, 2496950, 3995120, 4993900, 6242375, 9987800, 12484750, 19975600, 24969500, 49939000, 99878000]

約数ペア:

[(1, 99878000), (2, 49939000), (4, 24969500), (5, 19975600), (8, 12484750), (10, 9987800), (16, 6242375), (20, 4993900), (25, 3995120), (40, 2496950), (50, 1997560), (80, 1248475), (100, 998780), (125, 799024), (200, 499390), (250, 399512), (400, 249695), (500, 199756), (1000, 99878), (2000, 49939)]