2560240

素因数分解:

$2^4\times 5^1\times {\mathrm{32003}}^1$

素因数の和:32016

約数の個数: 20

約数和(自身を含む): 5952744

約数和(自身を除く): 3392504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 32003, 64006, 128012, 160015, 256024, 320030, 512048, 640060, 1280120, 2560240]

約数ペア:

[(1, 2560240), (2, 1280120), (4, 640060), (5, 512048), (8, 320030), (10, 256024), (16, 160015), (20, 128012), (40, 64006), (80, 32003)]