20974040

素因数分解:

$2^3\times 5^1\times {\mathrm{524351}}^1$

素因数の和:524362

約数の個数: 16

約数和(自身を含む): 47191680

約数和(自身を除く): 26217640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 524351, 1048702, 2097404, 2621755, 4194808, 5243510, 10487020, 20974040]

約数ペア:

[(1, 20974040), (2, 10487020), (4, 5243510), (5, 4194808), (8, 2621755), (10, 2097404), (20, 1048702), (40, 524351)]