12726220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{48947}}^1$

素因数の和:48969

約数の個数: 24

約数和(自身を含む): 28781424

約数和(自身を除く): 16055204

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 48947, 97894, 195788, 244735, 489470, 636311, 978940, 1272622, 2545244, 3181555, 6363110, 12726220]

約数ペア:

[(1, 12726220), (2, 6363110), (4, 3181555), (5, 2545244), (10, 1272622), (13, 978940), (20, 636311), (26, 489470), (52, 244735), (65, 195788), (130, 97894), (260, 48947)]