51544780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{557}}^1\times {\mathrm{661}}^1$

素因数の和:1234

約数の個数: 48

約数和(自身を含む): 124117056

約数和(自身を除く): 72572276

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 557, 661, 1114, 1322, 2228, 2644, 2785, 3305, 3899, 4627, 5570, 6610, 7798, 9254, 11140, 13220, 15596, 18508, 19495, 23135, 38990, 46270, 77980, 92540, 368177, 736354, 1472708, 1840885, 2577239, 3681770, 5154478, 7363540, 10308956, 12886195, 25772390, 51544780]

約数ペア:

[(1, 51544780), (2, 25772390), (4, 12886195), (5, 10308956), (7, 7363540), (10, 5154478), (14, 3681770), (20, 2577239), (28, 1840885), (35, 1472708), (70, 736354), (140, 368177), (557, 92540), (661, 77980), (1114, 46270), (1322, 38990), (2228, 23135), (2644, 19495), (2785, 18508), (3305, 15596), (3899, 13220), (4627, 11140), (5570, 9254), (6610, 7798)]