2560720

素因数分解:

$2^4\times 5^1\times {\mathrm{32009}}^1$

素因数の和:32022

約数の個数: 20

約数和(自身を含む): 5953860

約数和(自身を除く): 3393140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 32009, 64018, 128036, 160045, 256072, 320090, 512144, 640180, 1280360, 2560720]

約数ペア:

[(1, 2560720), (2, 1280360), (4, 640180), (5, 512144), (8, 320090), (10, 256072), (16, 160045), (20, 128036), (40, 64018), (80, 32009)]