80844784

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{123239}}^1$

素因数の和:123288

約数の個数: 20

約数和(自身を含む): 160458480

約数和(自身を除く): 79613696

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 123239, 246478, 492956, 985912, 1971824, 5052799, 10105598, 20211196, 40422392, 80844784]

約数ペア:

[(1, 80844784), (2, 40422392), (4, 20211196), (8, 10105598), (16, 5052799), (41, 1971824), (82, 985912), (164, 492956), (328, 246478), (656, 123239)]