1390900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{1987}}^1$

素因数の和:2008

約数の個数: 36

約数和(自身を含む): 3451168

約数和(自身を除く): 2060268

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 700, 1987, 3974, 7948, 9935, 13909, 19870, 27818, 39740, 49675, 55636, 69545, 99350, 139090, 198700, 278180, 347725, 695450, 1390900]

約数ペア:

[(1, 1390900), (2, 695450), (4, 347725), (5, 278180), (7, 198700), (10, 139090), (14, 99350), (20, 69545), (25, 55636), (28, 49675), (35, 39740), (50, 27818), (70, 19870), (100, 13909), (140, 9935), (175, 7948), (350, 3974), (700, 1987)]