165728780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{169111}}^1$

素因数の和:169134

約数の個数: 36

約数和(自身を含む): 404854128

約数和(自身を除く): 239125348

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 169111, 338222, 676444, 845555, 1183777, 1691110, 2367554, 3382220, 4735108, 5918885, 8286439, 11837770, 16572878, 23675540, 33145756, 41432195, 82864390, 165728780]

約数ペア:

[(1, 165728780), (2, 82864390), (4, 41432195), (5, 33145756), (7, 23675540), (10, 16572878), (14, 11837770), (20, 8286439), (28, 5918885), (35, 4735108), (49, 3382220), (70, 2367554), (98, 1691110), (140, 1183777), (196, 845555), (245, 676444), (490, 338222), (980, 169111)]