20100988

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^2$

素因数の和:214

約数の個数: 36

約数和(自身を含む): 38123568

約数和(自身を除く): 18022580

約数列:

[1, 2, 4, 23, 41, 46, 73, 82, 92, 146, 164, 292, 943, 1679, 1886, 2993, 3358, 3772, 5329, 5986, 6716, 10658, 11972, 21316, 68839, 122567, 137678, 218489, 245134, 275356, 436978, 490268, 873956, 5025247, 10050494, 20100988]

約数ペア:

[(1, 20100988), (2, 10050494), (4, 5025247), (23, 873956), (41, 490268), (46, 436978), (73, 275356), (82, 245134), (92, 218489), (146, 137678), (164, 122567), (292, 68839), (943, 21316), (1679, 11972), (1886, 10658), (2993, 6716), (3358, 5986), (3772, 5329)]