26780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1$

素因数の和:125

約数の個数: 24

約数和(自身を含む): 61152

約数和(自身を除く): 34372

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 103, 130, 206, 260, 412, 515, 1030, 1339, 2060, 2678, 5356, 6695, 13390, 26780]

約数ペア:

[(1, 26780), (2, 13390), (4, 6695), (5, 5356), (10, 2678), (13, 2060), (20, 1339), (26, 1030), (52, 515), (65, 412), (103, 260), (130, 206)]