257957810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{5441}}^1$

素因数の和:5890

約数の個数: 32

約数和(自身を含む): 507803904

約数和(自身を除く): 249846094

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 431, 862, 2155, 4310, 4741, 5441, 9482, 10882, 23705, 27205, 47410, 54410, 59851, 119702, 299255, 598510, 2345071, 4690142, 11725355, 23450710, 25795781, 51591562, 128978905, 257957810]

約数ペア:

[(1, 257957810), (2, 128978905), (5, 51591562), (10, 25795781), (11, 23450710), (22, 11725355), (55, 4690142), (110, 2345071), (431, 598510), (862, 299255), (2155, 119702), (4310, 59851), (4741, 54410), (5441, 47410), (9482, 27205), (10882, 23705)]