18077180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{647}}^1$

素因数の和:794

約数の個数: 48

約数和(自身を含む): 41803776

約数和(自身を除く): 23726596

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 127, 220, 254, 508, 635, 647, 1270, 1294, 1397, 2540, 2588, 2794, 3235, 5588, 6470, 6985, 7117, 12940, 13970, 14234, 27940, 28468, 35585, 71170, 82169, 142340, 164338, 328676, 410845, 821690, 903859, 1643380, 1807718, 3615436, 4519295, 9038590, 18077180]

約数ペア:

[(1, 18077180), (2, 9038590), (4, 4519295), (5, 3615436), (10, 1807718), (11, 1643380), (20, 903859), (22, 821690), (44, 410845), (55, 328676), (110, 164338), (127, 142340), (220, 82169), (254, 71170), (508, 35585), (635, 28468), (647, 27940), (1270, 14234), (1294, 13970), (1397, 12940), (2540, 7117), (2588, 6985), (2794, 6470), (3235, 5588)]