20162790470

素因数分解:

$2^1\times 5^1\times {\mathrm{787}}^1\times {\mathrm{2561981}}^1$

素因数の和:2562775

約数の個数: 16

約数和(自身を含む): 36339152688

約数和(自身を除く): 16176362218

約数列:

[1, 2, 5, 10, 787, 1574, 3935, 7870, 2561981, 5123962, 12809905, 25619810, 2016279047, 4032558094, 10081395235, 20162790470]

約数ペア:

[(1, 20162790470), (2, 10081395235), (5, 4032558094), (10, 2016279047), (787, 25619810), (1574, 12809905), (3935, 5123962), (7870, 2561981)]