57178225

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:250

約数の個数: 48

約数和(自身を含む): 82494720

約数和(自身を除く): 25316495

約数列:

[1, 5, 13, 17, 25, 65, 79, 85, 131, 221, 325, 395, 425, 655, 1027, 1105, 1343, 1703, 1975, 2227, 3275, 5135, 5525, 6715, 8515, 10349, 11135, 17459, 25675, 28951, 33575, 42575, 51745, 55675, 87295, 134537, 144755, 175933, 258725, 436475, 672685, 723775, 879665, 2287129, 3363425, 4398325, 11435645, 57178225]

約数ペア:

[(1, 57178225), (5, 11435645), (13, 4398325), (17, 3363425), (25, 2287129), (65, 879665), (79, 723775), (85, 672685), (131, 436475), (221, 258725), (325, 175933), (395, 144755), (425, 134537), (655, 87295), (1027, 55675), (1105, 51745), (1343, 42575), (1703, 33575), (1975, 28951), (2227, 25675), (3275, 17459), (5135, 11135), (5525, 10349), (6715, 8515)]