13260255

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{349}}^1$

素因数の和:523

約数の個数: 32

約数和(自身を含む): 22680000

約数和(自身を除く): 9419745

約数列:

[1, 3, 5, 15, 17, 51, 85, 149, 255, 349, 447, 745, 1047, 1745, 2235, 2533, 5235, 5933, 7599, 12665, 17799, 29665, 37995, 52001, 88995, 156003, 260005, 780015, 884017, 2652051, 4420085, 13260255]

約数ペア:

[(1, 13260255), (3, 4420085), (5, 2652051), (15, 884017), (17, 780015), (51, 260005), (85, 156003), (149, 88995), (255, 52001), (349, 37995), (447, 29665), (745, 17799), (1047, 12665), (1745, 7599), (2235, 5933), (2533, 5235)]