20797490

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{1493}}^1$

素因数の和:1706

約数の個数: 32

約数和(自身を含む): 43027200

約数和(自身を除く): 22229710

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 199, 398, 995, 1393, 1493, 1990, 2786, 2986, 6965, 7465, 10451, 13930, 14930, 20902, 52255, 104510, 297107, 594214, 1485535, 2079749, 2971070, 4159498, 10398745, 20797490]

約数ペア:

[(1, 20797490), (2, 10398745), (5, 4159498), (7, 2971070), (10, 2079749), (14, 1485535), (35, 594214), (70, 297107), (199, 104510), (398, 52255), (995, 20902), (1393, 14930), (1493, 13930), (1990, 10451), (2786, 7465), (2986, 6965)]