20323870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{1459}}^1$

素因数の和:1672

約数の個数: 32

約数和(自身を含む): 42048000

約数和(自身を除く): 21724130

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 199, 398, 995, 1393, 1459, 1990, 2786, 2918, 6965, 7295, 10213, 13930, 14590, 20426, 51065, 102130, 290341, 580682, 1451705, 2032387, 2903410, 4064774, 10161935, 20323870]

約数ペア:

[(1, 20323870), (2, 10161935), (5, 4064774), (7, 2903410), (10, 2032387), (14, 1451705), (35, 580682), (70, 290341), (199, 102130), (398, 51065), (995, 20426), (1393, 14590), (1459, 13930), (1990, 10213), (2786, 7295), (2918, 6965)]