19152980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{12437}}^1$

素因数の和:12464

約数の個数: 48

約数和(自身を含む): 50150016

約数和(自身を除く): 30997036

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 12437, 24874, 49748, 62185, 87059, 124370, 136807, 174118, 248740, 273614, 348236, 435295, 547228, 684035, 870590, 957649, 1368070, 1741180, 1915298, 2736140, 3830596, 4788245, 9576490, 19152980]

約数ペア:

[(1, 19152980), (2, 9576490), (4, 4788245), (5, 3830596), (7, 2736140), (10, 1915298), (11, 1741180), (14, 1368070), (20, 957649), (22, 870590), (28, 684035), (35, 547228), (44, 435295), (55, 348236), (70, 273614), (77, 248740), (110, 174118), (140, 136807), (154, 124370), (220, 87059), (308, 62185), (385, 49748), (770, 24874), (1540, 12437)]