9870020

素因数分解:

$2^2\times 5^1\times {\mathrm{193}}^1\times {\mathrm{2557}}^1$

素因数の和:2759

約数の個数: 24

約数和(自身を含む): 20842584

約数和(自身を除く): 10972564

約数列:

[1, 2, 4, 5, 10, 20, 193, 386, 772, 965, 1930, 2557, 3860, 5114, 10228, 12785, 25570, 51140, 493501, 987002, 1974004, 2467505, 4935010, 9870020]

約数ペア:

[(1, 9870020), (2, 4935010), (4, 2467505), (5, 1974004), (10, 987002), (20, 493501), (193, 51140), (386, 25570), (772, 12785), (965, 10228), (1930, 5114), (2557, 3860)]