15665720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{55949}}^1$

素因数の和:55967

約数の個数: 32

約数和(自身を含む): 40284000

約数和(自身を除く): 24618280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 55949, 111898, 223796, 279745, 391643, 447592, 559490, 783286, 1118980, 1566572, 1958215, 2237960, 3133144, 3916430, 7832860, 15665720]

約数ペア:

[(1, 15665720), (2, 7832860), (4, 3916430), (5, 3133144), (7, 2237960), (8, 1958215), (10, 1566572), (14, 1118980), (20, 783286), (28, 559490), (35, 447592), (40, 391643), (56, 279745), (70, 223796), (140, 111898), (280, 55949)]