257423972

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{115127}}^1$

素因数の和:115187

約数の個数: 24

約数和(自身を含む): 496431936

約数和(自身を除く): 239007964

約数列:

[1, 2, 4, 13, 26, 43, 52, 86, 172, 559, 1118, 2236, 115127, 230254, 460508, 1496651, 2993302, 4950461, 5986604, 9900922, 19801844, 64355993, 128711986, 257423972]

約数ペア:

[(1, 257423972), (2, 128711986), (4, 64355993), (13, 19801844), (26, 9900922), (43, 5986604), (52, 4950461), (86, 2993302), (172, 1496651), (559, 460508), (1118, 230254), (2236, 115127)]