2580255

素因数分解:

$3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{277}}^1$

素因数の和:317

約数の個数: 40

約数和(自身を含む): 4843872

約数和(自身を除く): 2263617

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 81, 115, 135, 207, 277, 345, 405, 621, 831, 1035, 1385, 1863, 2493, 3105, 4155, 6371, 7479, 9315, 12465, 19113, 22437, 31855, 37395, 57339, 95565, 112185, 172017, 286695, 516051, 860085, 2580255]

約数ペア:

[(1, 2580255), (3, 860085), (5, 516051), (9, 286695), (15, 172017), (23, 112185), (27, 95565), (45, 57339), (69, 37395), (81, 31855), (115, 22437), (135, 19113), (207, 12465), (277, 9315), (345, 7479), (405, 6371), (621, 4155), (831, 3105), (1035, 2493), (1385, 1863)]