12879790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{389}}^1$

素因数の和:457

約数の個数: 64

約数和(自身を含む): 29652480

約数和(自身を除く): 16772690

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 43, 55, 70, 77, 86, 110, 154, 215, 301, 385, 389, 430, 473, 602, 770, 778, 946, 1505, 1945, 2365, 2723, 3010, 3311, 3890, 4279, 4730, 5446, 6622, 8558, 13615, 16555, 16727, 21395, 27230, 29953, 33110, 33454, 42790, 59906, 83635, 117089, 149765, 167270, 183997, 234178, 299530, 367994, 585445, 919985, 1170890, 1287979, 1839970, 2575958, 6439895, 12879790]

約数ペア:

[(1, 12879790), (2, 6439895), (5, 2575958), (7, 1839970), (10, 1287979), (11, 1170890), (14, 919985), (22, 585445), (35, 367994), (43, 299530), (55, 234178), (70, 183997), (77, 167270), (86, 149765), (110, 117089), (154, 83635), (215, 59906), (301, 42790), (385, 33454), (389, 33110), (430, 29953), (473, 27230), (602, 21395), (770, 16727), (778, 16555), (946, 13615), (1505, 8558), (1945, 6622), (2365, 5446), (2723, 4730), (3010, 4279), (3311, 3890)]