2001440

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{1787}}^1$

素因数の和:1809

約数の個数: 48

約数和(自身を含む): 5406912

約数和(自身を除く): 3405472

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, 1787, 3574, 7148, 8935, 12509, 14296, 17870, 25018, 28592, 35740, 50036, 57184, 62545, 71480, 100072, 125090, 142960, 200144, 250180, 285920, 400288, 500360, 1000720, 2001440]

約数ペア:

[(1, 2001440), (2, 1000720), (4, 500360), (5, 400288), (7, 285920), (8, 250180), (10, 200144), (14, 142960), (16, 125090), (20, 100072), (28, 71480), (32, 62545), (35, 57184), (40, 50036), (56, 35740), (70, 28592), (80, 25018), (112, 17870), (140, 14296), (160, 12509), (224, 8935), (280, 7148), (560, 3574), (1120, 1787)]