266536660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{78857}}^1$

素因数の和:78892

約数の個数: 36

約数和(自身を含む): 606102588

約数和(自身を除く): 339565928

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 78857, 157714, 315428, 394285, 788570, 1025141, 1577140, 2050282, 4100564, 5125705, 10251410, 13326833, 20502820, 26653666, 53307332, 66634165, 133268330, 266536660]

約数ペア:

[(1, 266536660), (2, 133268330), (4, 66634165), (5, 53307332), (10, 26653666), (13, 20502820), (20, 13326833), (26, 10251410), (52, 5125705), (65, 4100564), (130, 2050282), (169, 1577140), (260, 1025141), (338, 788570), (676, 394285), (845, 315428), (1690, 157714), (3380, 78857)]