1000720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{1787}}^1$

素因数の和:1807

約数の個数: 40

約数和(自身を含む): 2660544

約数和(自身を除く): 1659824

約数列:

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

約数ペア:

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