28121860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{108161}}^1$

素因数の和:108183

約数の個数: 24

約数和(自身を含む): 63599256

約数和(自身を除く): 35477396

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 108161, 216322, 432644, 540805, 1081610, 1406093, 2163220, 2812186, 5624372, 7030465, 14060930, 28121860]

約数ペア:

[(1, 28121860), (2, 14060930), (4, 7030465), (5, 5624372), (10, 2812186), (13, 2163220), (20, 1406093), (26, 1081610), (52, 540805), (65, 432644), (130, 216322), (260, 108161)]