19928360

素因数分解:

$2^3\times 5^1\times {\mathrm{498209}}^1$

素因数の和:498220

約数の個数: 16

約数和(自身を含む): 44838900

約数和(自身を除く): 24910540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 498209, 996418, 1992836, 2491045, 3985672, 4982090, 9964180, 19928360]

約数ペア:

[(1, 19928360), (2, 9964180), (4, 4982090), (5, 3985672), (8, 2491045), (10, 1992836), (20, 996418), (40, 498209)]