18580520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{66359}}^1$

素因数の和:66377

約数の個数: 32

約数和(自身を含む): 47779200

約数和(自身を除く): 29198680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 66359, 132718, 265436, 331795, 464513, 530872, 663590, 929026, 1327180, 1858052, 2322565, 2654360, 3716104, 4645130, 9290260, 18580520]

約数ペア:

[(1, 18580520), (2, 9290260), (4, 4645130), (5, 3716104), (7, 2654360), (8, 2322565), (10, 1858052), (14, 1327180), (20, 929026), (28, 663590), (35, 530872), (40, 464513), (56, 331795), (70, 265436), (140, 132718), (280, 66359)]