80644280

素因数分解:

$2^3\times 5^1\times {\mathrm{2016107}}^1$

素因数の和:2016118

約数の個数: 16

約数和(自身を含む): 181449720

約数和(自身を除く): 100805440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2016107, 4032214, 8064428, 10080535, 16128856, 20161070, 40322140, 80644280]

約数ペア:

[(1, 80644280), (2, 40322140), (4, 20161070), (5, 16128856), (8, 10080535), (10, 8064428), (20, 4032214), (40, 2016107)]