20178086144

素因数分解:

$2^8\times {\mathrm{78820649}}^1$

素因数の和:78820665

約数の個数: 18

約数和(自身を含む): 40277352150

約数和(自身を除く): 20099266006

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 78820649, 157641298, 315282596, 630565192, 1261130384, 2522260768, 5044521536, 10089043072, 20178086144]

約数ペア:

[(1, 20178086144), (2, 10089043072), (4, 5044521536), (8, 2522260768), (16, 1261130384), (32, 630565192), (64, 315282596), (128, 157641298), (256, 78820649)]