128976421912

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{1240157903}}^1$

素因数の和:1240157922

約数の個数: 16

約数和(自身を含む): 260433159840

約数和(自身を除く): 131456737928

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 1240157903, 2480315806, 4960631612, 9921263224, 16122052739, 32244105478, 64488210956, 128976421912]

約数ペア:

[(1, 128976421912), (2, 64488210956), (4, 32244105478), (8, 16122052739), (13, 9921263224), (26, 4960631612), (52, 2480315806), (104, 1240157903)]