20904310

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{523}}^1\times {\mathrm{571}}^1$

素因数の和:1108

約数の個数: 32

約数和(自身を含む): 43160832

約数和(自身を除く): 22256522

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 523, 571, 1046, 1142, 2615, 2855, 3661, 3997, 5230, 5710, 7322, 7994, 18305, 19985, 36610, 39970, 298633, 597266, 1493165, 2090431, 2986330, 4180862, 10452155, 20904310]

約数ペア:

[(1, 20904310), (2, 10452155), (5, 4180862), (7, 2986330), (10, 2090431), (14, 1493165), (35, 597266), (70, 298633), (523, 39970), (571, 36610), (1046, 19985), (1142, 18305), (2615, 7994), (2855, 7322), (3661, 5710), (3997, 5230)]