19775240

素因数分解:

$2^3\times 5^1\times {\mathrm{494381}}^1$

素因数の和:494392

約数の個数: 16

約数和(自身を含む): 44494380

約数和(自身を除く): 24719140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 494381, 988762, 1977524, 2471905, 3955048, 4943810, 9887620, 19775240]

約数ペア:

[(1, 19775240), (2, 9887620), (4, 4943810), (5, 3955048), (8, 2471905), (10, 1977524), (20, 988762), (40, 494381)]