28144665

素因数分解:

$3^4\times 5^1\times {\mathrm{69493}}^1$

素因数の和:69510

約数の個数: 20

約数和(自身を含む): 50452644

約数和(自身を除く): 22307979

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 69493, 208479, 347465, 625437, 1042395, 1876311, 3127185, 5628933, 9381555, 28144665]

約数ペア:

[(1, 28144665), (3, 9381555), (5, 5628933), (9, 3127185), (15, 1876311), (27, 1042395), (45, 625437), (81, 347465), (135, 208479), (405, 69493)]