199455440

素因数分解:

$2^4\times 5^1\times {\mathrm{2493193}}^1$

素因数の和:2493206

約数の個数: 20

約数和(自身を含む): 463734084

約数和(自身を除く): 264278644

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2493193, 4986386, 9972772, 12465965, 19945544, 24931930, 39891088, 49863860, 99727720, 199455440]

約数ペア:

[(1, 199455440), (2, 99727720), (4, 49863860), (5, 39891088), (8, 24931930), (10, 19945544), (16, 12465965), (20, 9972772), (40, 4986386), (80, 2493193)]