28988000

素因数分解:

$2^5\times 5^3\times {\mathrm{7247}}^1$

素因数の和:7272

約数の個数: 48

約数和(自身を含む): 71233344

約数和(自身を除く): 42245344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 7247, 14494, 28988, 36235, 57976, 72470, 115952, 144940, 181175, 231904, 289880, 362350, 579760, 724700, 905875, 1159520, 1449400, 1811750, 2898800, 3623500, 5797600, 7247000, 14494000, 28988000]

約数ペア:

[(1, 28988000), (2, 14494000), (4, 7247000), (5, 5797600), (8, 3623500), (10, 2898800), (16, 1811750), (20, 1449400), (25, 1159520), (32, 905875), (40, 724700), (50, 579760), (80, 362350), (100, 289880), (125, 231904), (160, 181175), (200, 144940), (250, 115952), (400, 72470), (500, 57976), (800, 36235), (1000, 28988), (2000, 14494), (4000, 7247)]