19189720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43613}}^1$

素因数の和:43635

約数の個数: 32

約数和(自身を含む): 47103120

約数和(自身を除く): 27913400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 43613, 87226, 174452, 218065, 348904, 436130, 479743, 872260, 959486, 1744520, 1918972, 2398715, 3837944, 4797430, 9594860, 19189720]

約数ペア:

[(1, 19189720), (2, 9594860), (4, 4797430), (5, 3837944), (8, 2398715), (10, 1918972), (11, 1744520), (20, 959486), (22, 872260), (40, 479743), (44, 436130), (55, 348904), (88, 218065), (110, 174452), (220, 87226), (440, 43613)]