2016191525

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:426

約数の個数: 48

約数和(自身を含む): 2621498880

約数和(自身を除く): 605307355

約数列:

[1, 5, 25, 43, 103, 131, 139, 215, 515, 655, 695, 1075, 2575, 3275, 3475, 4429, 5633, 5977, 13493, 14317, 18209, 22145, 28165, 29885, 67465, 71585, 91045, 110725, 140825, 149425, 337325, 357925, 455225, 580199, 615631, 782987, 1875527, 2900995, 3078155, 3914935, 9377635, 14504975, 15390775, 19574675, 46888175, 80647661, 403238305, 2016191525]

約数ペア:

[(1, 2016191525), (5, 403238305), (25, 80647661), (43, 46888175), (103, 19574675), (131, 15390775), (139, 14504975), (215, 9377635), (515, 3914935), (655, 3078155), (695, 2900995), (1075, 1875527), (2575, 782987), (3275, 615631), (3475, 580199), (4429, 455225), (5633, 357925), (5977, 337325), (13493, 149425), (14317, 140825), (18209, 110725), (22145, 91045), (28165, 71585), (29885, 67465)]