20000620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{24391}}^1$

素因数の和:24441

約数の個数: 24

約数和(自身を含む): 43027488

約数和(自身を除く): 23026868

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 24391, 48782, 97564, 121955, 243910, 487820, 1000031, 2000062, 4000124, 5000155, 10000310, 20000620]

約数ペア:

[(1, 20000620), (2, 10000310), (4, 5000155), (5, 4000124), (10, 2000062), (20, 1000031), (41, 487820), (82, 243910), (164, 121955), (205, 97564), (410, 48782), (820, 24391)]