201920800

素因数分解:

$2^5\times 5^2\times {\mathrm{252401}}^1$

素因数の和:252421

約数の個数: 36

約数和(自身を含む): 492941106

約数和(自身を除く): 291020306

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 252401, 504802, 1009604, 1262005, 2019208, 2524010, 4038416, 5048020, 6310025, 8076832, 10096040, 12620050, 20192080, 25240100, 40384160, 50480200, 100960400, 201920800]

約数ペア:

[(1, 201920800), (2, 100960400), (4, 50480200), (5, 40384160), (8, 25240100), (10, 20192080), (16, 12620050), (20, 10096040), (25, 8076832), (32, 6310025), (40, 5048020), (50, 4038416), (80, 2524010), (100, 2019208), (160, 1262005), (200, 1009604), (400, 504802), (800, 252401)]