2560280

素因数分解:

$2^3\times 5^1\times {\mathrm{64007}}^1$

素因数の和:64018

約数の個数: 16

約数和(自身を含む): 5760720

約数和(自身を除く): 3200440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 64007, 128014, 256028, 320035, 512056, 640070, 1280140, 2560280]

約数ペア:

[(1, 2560280), (2, 1280140), (4, 640070), (5, 512056), (8, 320035), (10, 256028), (20, 128014), (40, 64007)]