28120144

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{135193}}^1$

素因数の和:135214

約数の個数: 20

約数和(自身を含む): 58674196

約数和(自身を除く): 30554052

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 135193, 270386, 540772, 1081544, 1757509, 2163088, 3515018, 7030036, 14060072, 28120144]

約数ペア:

[(1, 28120144), (2, 14060072), (4, 7030036), (8, 3515018), (13, 2163088), (16, 1757509), (26, 1081544), (52, 540772), (104, 270386), (208, 135193)]