278049310

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{1871}}^1$

素因数の和:2089

約数の個数: 64

約数和(自身を含む): 627554304

約数和(自身を除く): 349504994

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 193, 385, 386, 770, 965, 1351, 1871, 1930, 2123, 2702, 3742, 4246, 6755, 9355, 10615, 13097, 13510, 14861, 18710, 20581, 21230, 26194, 29722, 41162, 65485, 74305, 102905, 130970, 144067, 148610, 205810, 288134, 361103, 720335, 722206, 1440670, 1805515, 2527721, 3611030, 3972133, 5055442, 7944266, 12638605, 19860665, 25277210, 27804931, 39721330, 55609862, 139024655, 278049310]

約数ペア:

[(1, 278049310), (2, 139024655), (5, 55609862), (7, 39721330), (10, 27804931), (11, 25277210), (14, 19860665), (22, 12638605), (35, 7944266), (55, 5055442), (70, 3972133), (77, 3611030), (110, 2527721), (154, 1805515), (193, 1440670), (385, 722206), (386, 720335), (770, 361103), (965, 288134), (1351, 205810), (1871, 148610), (1930, 144067), (2123, 130970), (2702, 102905), (3742, 74305), (4246, 65485), (6755, 41162), (9355, 29722), (10615, 26194), (13097, 21230), (13510, 20581), (14861, 18710)]