1997800

素因数分解:

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

素因数の和:1450

約数の個数: 48

約数和(自身を含む): 5312160

約数和(自身を除く): 3314360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 140, 175, 200, 280, 350, 700, 1400, 1427, 2854, 5708, 7135, 9989, 11416, 14270, 19978, 28540, 35675, 39956, 49945, 57080, 71350, 79912, 99890, 142700, 199780, 249725, 285400, 399560, 499450, 998900, 1997800]

約数ペア:

[(1, 1997800), (2, 998900), (4, 499450), (5, 399560), (7, 285400), (8, 249725), (10, 199780), (14, 142700), (20, 99890), (25, 79912), (28, 71350), (35, 57080), (40, 49945), (50, 39956), (56, 35675), (70, 28540), (100, 19978), (140, 14270), (175, 11416), (200, 9989), (280, 7135), (350, 5708), (700, 2854), (1400, 1427)]