19952120

素因数分解:

$2^3\times 5^1\times {\mathrm{498803}}^1$

素因数の和:498814

約数の個数: 16

約数和(自身を含む): 44892360

約数和(自身を除く): 24940240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 498803, 997606, 1995212, 2494015, 3990424, 4988030, 9976060, 19952120]

約数ペア:

[(1, 19952120), (2, 9976060), (4, 4988030), (5, 3990424), (8, 2494015), (10, 1995212), (20, 997606), (40, 498803)]