28081456

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{135007}}^1$

素因数の和:135028

約数の個数: 20

約数和(自身を含む): 58593472

約数和(自身を除く): 30512016

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 135007, 270014, 540028, 1080056, 1755091, 2160112, 3510182, 7020364, 14040728, 28081456]

約数ペア:

[(1, 28081456), (2, 14040728), (4, 7020364), (8, 3510182), (13, 2160112), (16, 1755091), (26, 1080056), (52, 540028), (104, 270014), (208, 135007)]