2108840

素因数分解:

$2^3\times 5^1\times {\mathrm{52721}}^1$

素因数の和:52732

約数の個数: 16

約数和(自身を含む): 4744980

約数和(自身を除く): 2636140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 52721, 105442, 210884, 263605, 421768, 527210, 1054420, 2108840]

約数ペア:

[(1, 2108840), (2, 1054420), (4, 527210), (5, 421768), (8, 263605), (10, 210884), (20, 105442), (40, 52721)]