138956656

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{122321}}^1$

素因数の和:122400

約数の個数: 20

約数和(自身を含む): 273022704

約数和(自身を除く): 134066048

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 122321, 244642, 489284, 978568, 1957136, 8684791, 17369582, 34739164, 69478328, 138956656]

約数ペア:

[(1, 138956656), (2, 69478328), (4, 34739164), (8, 17369582), (16, 8684791), (71, 1957136), (142, 978568), (284, 489284), (568, 244642), (1136, 122321)]