2225440

素因数分解:

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

素因数の和:2009

約数の個数: 48

約数和(自身を含む): 6011712

約数和(自身を除く): 3786272

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 1987, 3974, 7948, 9935, 13909, 15896, 19870, 27818, 31792, 39740, 55636, 63584, 69545, 79480, 111272, 139090, 158960, 222544, 278180, 317920, 445088, 556360, 1112720, 2225440]

約数ペア:

[(1, 2225440), (2, 1112720), (4, 556360), (5, 445088), (7, 317920), (8, 278180), (10, 222544), (14, 158960), (16, 139090), (20, 111272), (28, 79480), (32, 69545), (35, 63584), (40, 55636), (56, 39740), (70, 31792), (80, 27818), (112, 19870), (140, 15896), (160, 13909), (224, 9935), (280, 7948), (560, 3974), (1120, 1987)]