2561440

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{2287}}^1$

素因数の和:2309

約数の個数: 48

約数和(自身を含む): 6918912

約数和(自身を除く): 4357472

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, 2287, 4574, 9148, 11435, 16009, 18296, 22870, 32018, 36592, 45740, 64036, 73184, 80045, 91480, 128072, 160090, 182960, 256144, 320180, 365920, 512288, 640360, 1280720, 2561440]

約数ペア:

[(1, 2561440), (2, 1280720), (4, 640360), (5, 512288), (7, 365920), (8, 320180), (10, 256144), (14, 182960), (16, 160090), (20, 128072), (28, 91480), (32, 80045), (35, 73184), (40, 64036), (56, 45740), (70, 36592), (80, 32018), (112, 22870), (140, 18296), (160, 16009), (224, 11435), (280, 9148), (560, 4574), (1120, 2287)]