138668889616

素因数分解:

$2^4\times {\mathrm{20753}}^1\times {\mathrm{417617}}^1$

素因数の和:438378

約数の個数: 20

約数和(自身を含む): 268684563132

約数和(自身を除く): 130015673516

約数列:

[1, 2, 4, 8, 16, 20753, 41506, 83012, 166024, 332048, 417617, 835234, 1670468, 3340936, 6681872, 8666805601, 17333611202, 34667222404, 69334444808, 138668889616]

約数ペア:

[(1, 138668889616), (2, 69334444808), (4, 34667222404), (8, 17333611202), (16, 8666805601), (20753, 6681872), (41506, 3340936), (83012, 1670468), (166024, 835234), (332048, 417617)]