19440340

素因数分解:

$2^2\times 5^1\times {\mathrm{972017}}^1$

素因数の和:972026

約数の個数: 12

約数和(自身を含む): 40824756

約数和(自身を除く): 21384416

約数列:

[1, 2, 4, 5, 10, 20, 972017, 1944034, 3888068, 4860085, 9720170, 19440340]

約数ペア:

[(1, 19440340), (2, 9720170), (4, 4860085), (5, 3888068), (10, 1944034), (20, 972017)]