138020

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:179

約数の個数: 24

約数和(自身を含む): 297024

約数和(自身を除く): 159004

約数列:

[1, 2, 4, 5, 10, 20, 67, 103, 134, 206, 268, 335, 412, 515, 670, 1030, 1340, 2060, 6901, 13802, 27604, 34505, 69010, 138020]

約数ペア:

[(1, 138020), (2, 69010), (4, 34505), (5, 27604), (10, 13802), (20, 6901), (67, 2060), (103, 1340), (134, 1030), (206, 670), (268, 515), (335, 412)]