68616860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{263911}}^1$

素因数の和:263933

約数の個数: 24

約数和(自身を含む): 155180256

約数和(自身を除く): 86563396

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 263911, 527822, 1055644, 1319555, 2639110, 3430843, 5278220, 6861686, 13723372, 17154215, 34308430, 68616860]

約数ペア:

[(1, 68616860), (2, 34308430), (4, 17154215), (5, 13723372), (10, 6861686), (13, 5278220), (20, 3430843), (26, 2639110), (52, 1319555), (65, 1055644), (130, 527822), (260, 263911)]