279399745

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{433}}^1$

素因数の和:673

約数の個数: 32

約数和(自身を含む): 363976704

約数和(自身を除く): 84576959

約数列:

[1, 5, 23, 31, 115, 155, 181, 433, 713, 905, 2165, 3565, 4163, 5611, 9959, 13423, 20815, 28055, 49795, 67115, 78373, 129053, 308729, 391865, 645265, 1543645, 1802579, 2429563, 9012895, 12147815, 55879949, 279399745]

約数ペア:

[(1, 279399745), (5, 55879949), (23, 12147815), (31, 9012895), (115, 2429563), (155, 1802579), (181, 1543645), (433, 645265), (713, 391865), (905, 308729), (2165, 129053), (3565, 78373), (4163, 67115), (5611, 49795), (9959, 28055), (13423, 20815)]