28440765

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{27479}}^1$

素因数の和:27513

約数の個数: 24

約数和(自身を含む): 51442560

約数和(自身を除く): 23001795

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 27479, 82437, 137395, 247311, 412185, 632017, 1236555, 1896051, 3160085, 5688153, 9480255, 28440765]

約数ペア:

[(1, 28440765), (3, 9480255), (5, 5688153), (9, 3160085), (15, 1896051), (23, 1236555), (45, 632017), (69, 412185), (115, 247311), (207, 137395), (345, 82437), (1035, 27479)]