20601040

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{5479}}^1$

素因数の和:5539

約数の個数: 40

約数和(自身を含む): 48925440

約数和(自身を除く): 28324400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3760, 5479, 10958, 21916, 27395, 43832, 54790, 87664, 109580, 219160, 257513, 438320, 515026, 1030052, 1287565, 2060104, 2575130, 4120208, 5150260, 10300520, 20601040]

約数ペア:

[(1, 20601040), (2, 10300520), (4, 5150260), (5, 4120208), (8, 2575130), (10, 2060104), (16, 1287565), (20, 1030052), (40, 515026), (47, 438320), (80, 257513), (94, 219160), (188, 109580), (235, 87664), (376, 54790), (470, 43832), (752, 27395), (940, 21916), (1880, 10958), (3760, 5479)]