81138190

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{557}}^1\times {\mathrm{2081}}^1$

素因数の和:2652

約数の個数: 32

約数和(自身を含む): 167292864

約数和(自身を除く): 86154674

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 557, 1114, 2081, 2785, 3899, 4162, 5570, 7798, 10405, 14567, 19495, 20810, 29134, 38990, 72835, 145670, 1159117, 2318234, 5795585, 8113819, 11591170, 16227638, 40569095, 81138190]

約数ペア:

[(1, 81138190), (2, 40569095), (5, 16227638), (7, 11591170), (10, 8113819), (14, 5795585), (35, 2318234), (70, 1159117), (557, 145670), (1114, 72835), (2081, 38990), (2785, 29134), (3899, 20810), (4162, 19495), (5570, 14567), (7798, 10405)]