68644665

素因数分解:

$3^4\times 5^1\times {\mathrm{169493}}^1$

素因数の和:169510

約数の個数: 20

約数和(自身を含む): 123052644

約数和(自身を除く): 54407979

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 169493, 508479, 847465, 1525437, 2542395, 4576311, 7627185, 13728933, 22881555, 68644665]

約数ペア:

[(1, 68644665), (3, 22881555), (5, 13728933), (9, 7627185), (15, 4576311), (27, 2542395), (45, 1525437), (81, 847465), (135, 508479), (405, 169493)]