20090914

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{193}}^1$

素因数の和:322

約数の個数: 32

約数和(自身を含む): 33076224

約数和(自身を除く): 12985310

約数列:

[1, 2, 23, 31, 46, 62, 73, 146, 193, 386, 713, 1426, 1679, 2263, 3358, 4439, 4526, 5983, 8878, 11966, 14089, 28178, 52049, 104098, 137609, 275218, 324047, 436759, 648094, 873518, 10045457, 20090914]

約数ペア:

[(1, 20090914), (2, 10045457), (23, 873518), (31, 648094), (46, 436759), (62, 324047), (73, 275218), (146, 137609), (193, 104098), (386, 52049), (713, 28178), (1426, 14089), (1679, 11966), (2263, 8878), (3358, 5983), (4439, 4526)]