19666120

素因数分解:

$2^3\times 5^1\times {\mathrm{491653}}^1$

素因数の和:491664

約数の個数: 16

約数和(自身を含む): 44248860

約数和(自身を除く): 24582740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491653, 983306, 1966612, 2458265, 3933224, 4916530, 9833060, 19666120]

約数ペア:

[(1, 19666120), (2, 9833060), (4, 4916530), (5, 3933224), (8, 2458265), (10, 1966612), (20, 983306), (40, 491653)]