19480840

素因数分解:

$2^3\times 5^1\times {\mathrm{487021}}^1$

素因数の和:487032

約数の個数: 16

約数和(自身を含む): 43831980

約数和(自身を除く): 24351140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 487021, 974042, 1948084, 2435105, 3896168, 4870210, 9740420, 19480840]

約数ペア:

[(1, 19480840), (2, 9740420), (4, 4870210), (5, 3896168), (8, 2435105), (10, 1948084), (20, 974042), (40, 487021)]