278189318

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{90971}}^1$

素因数の和:91123

約数の個数: 16

約数和(自身を含む): 458498880

約数和(自身を除く): 180309562

約数列:

[1, 2, 11, 22, 139, 278, 1529, 3058, 90971, 181942, 1000681, 2001362, 12644969, 25289938, 139094659, 278189318]

約数ペア:

[(1, 278189318), (2, 139094659), (11, 25289938), (22, 12644969), (139, 2001362), (278, 1000681), (1529, 181942), (3058, 90971)]