20167584872

素因数分解:

$2^3\times {\mathrm{3229}}^1\times {\mathrm{780721}}^1$

素因数の和:783956

約数の個数: 16

約数和(自身を含む): 37825980900

約数和(自身を除く): 17658396028

約数列:

[1, 2, 4, 8, 3229, 6458, 12916, 25832, 780721, 1561442, 3122884, 6245768, 2520948109, 5041896218, 10083792436, 20167584872]

約数ペア:

[(1, 20167584872), (2, 10083792436), (4, 5041896218), (8, 2520948109), (3229, 6245768), (6458, 3122884), (12916, 1561442), (25832, 780721)]