9989000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{1427}}^1$

素因数の和:1455

約数の個数: 64

約数和(自身を含む): 26732160

約数和(自身を除く): 16743160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 125, 140, 175, 200, 250, 280, 350, 500, 700, 875, 1000, 1400, 1427, 1750, 2854, 3500, 5708, 7000, 7135, 9989, 11416, 14270, 19978, 28540, 35675, 39956, 49945, 57080, 71350, 79912, 99890, 142700, 178375, 199780, 249725, 285400, 356750, 399560, 499450, 713500, 998900, 1248625, 1427000, 1997800, 2497250, 4994500, 9989000]

約数ペア:

[(1, 9989000), (2, 4994500), (4, 2497250), (5, 1997800), (7, 1427000), (8, 1248625), (10, 998900), (14, 713500), (20, 499450), (25, 399560), (28, 356750), (35, 285400), (40, 249725), (50, 199780), (56, 178375), (70, 142700), (100, 99890), (125, 79912), (140, 71350), (175, 57080), (200, 49945), (250, 39956), (280, 35675), (350, 28540), (500, 19978), (700, 14270), (875, 11416), (1000, 9989), (1400, 7135), (1427, 7000), (1750, 5708), (2854, 3500)]