19082140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{12391}}^1$

素因数の和:12418

約数の個数: 48

約数和(自身を含む): 49964544

約数和(自身を除く): 30882404

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, 12391, 24782, 49564, 61955, 86737, 123910, 136301, 173474, 247820, 272602, 346948, 433685, 545204, 681505, 867370, 954107, 1363010, 1734740, 1908214, 2726020, 3816428, 4770535, 9541070, 19082140]

約数ペア:

[(1, 19082140), (2, 9541070), (4, 4770535), (5, 3816428), (7, 2726020), (10, 1908214), (11, 1734740), (14, 1363010), (20, 954107), (22, 867370), (28, 681505), (35, 545204), (44, 433685), (55, 346948), (70, 272602), (77, 247820), (110, 173474), (140, 136301), (154, 123910), (220, 86737), (308, 61955), (385, 49564), (770, 24782), (1540, 12391)]