1997172016

素因数分解:

$2^4\times 7^1\times {\mathrm{139}}^1\times {\mathrm{128287}}^1$

素因数の和:128441

約数の個数: 40

約数和(自身を含む): 4454159360

約数和(自身を除く): 2456987344

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 139, 278, 556, 973, 1112, 1946, 2224, 3892, 7784, 15568, 128287, 256574, 513148, 898009, 1026296, 1796018, 2052592, 3592036, 7184072, 14368144, 17831893, 35663786, 71327572, 124823251, 142655144, 249646502, 285310288, 499293004, 998586008, 1997172016]

約数ペア:

[(1, 1997172016), (2, 998586008), (4, 499293004), (7, 285310288), (8, 249646502), (14, 142655144), (16, 124823251), (28, 71327572), (56, 35663786), (112, 17831893), (139, 14368144), (278, 7184072), (556, 3592036), (973, 2052592), (1112, 1796018), (1946, 1026296), (2224, 898009), (3892, 513148), (7784, 256574), (15568, 128287)]