208043990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{997}}^1$

素因数の和:1293

約数の個数: 64

約数和(自身を含む): 469075968

約数和(自身を除く): 261031978

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 271, 385, 542, 770, 997, 1355, 1897, 1994, 2710, 2981, 3794, 4985, 5962, 6979, 9485, 9970, 10967, 13958, 14905, 18970, 20867, 21934, 29810, 34895, 41734, 54835, 69790, 76769, 104335, 109670, 153538, 208670, 270187, 383845, 540374, 767690, 1350935, 1891309, 2701870, 2972057, 3782618, 5944114, 9456545, 14860285, 18913090, 20804399, 29720570, 41608798, 104021995, 208043990]

約数ペア:

[(1, 208043990), (2, 104021995), (5, 41608798), (7, 29720570), (10, 20804399), (11, 18913090), (14, 14860285), (22, 9456545), (35, 5944114), (55, 3782618), (70, 2972057), (77, 2701870), (110, 1891309), (154, 1350935), (271, 767690), (385, 540374), (542, 383845), (770, 270187), (997, 208670), (1355, 153538), (1897, 109670), (1994, 104335), (2710, 76769), (2981, 69790), (3794, 54835), (4985, 41734), (5962, 34895), (6979, 29810), (9485, 21934), (9970, 20867), (10967, 18970), (13958, 14905)]