28326220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{108947}}^1$

素因数の和:108969

約数の個数: 24

約数和(自身を含む): 64061424

約数和(自身を除く): 35735204

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 108947, 217894, 435788, 544735, 1089470, 1416311, 2178940, 2832622, 5665244, 7081555, 14163110, 28326220]

約数ペア:

[(1, 28326220), (2, 14163110), (4, 7081555), (5, 5665244), (10, 2832622), (13, 2178940), (20, 1416311), (26, 1089470), (52, 544735), (65, 435788), (130, 217894), (260, 108947)]