2019401225

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{4729}}^1$

素因数の和:4818

約数の個数: 48

約数和(自身を含む): 2815296000

約数和(自身を除く): 795894775

約数列:

[1, 5, 19, 25, 29, 31, 95, 145, 155, 475, 551, 589, 725, 775, 899, 2755, 2945, 4495, 4729, 13775, 14725, 17081, 22475, 23645, 85405, 89851, 118225, 137141, 146599, 427025, 449255, 685705, 732995, 2246275, 2605679, 2785381, 3428525, 3664975, 4251371, 13028395, 13926905, 21256855, 65141975, 69634525, 80776049, 106284275, 403880245, 2019401225]

約数ペア:

[(1, 2019401225), (5, 403880245), (19, 106284275), (25, 80776049), (29, 69634525), (31, 65141975), (95, 21256855), (145, 13926905), (155, 13028395), (475, 4251371), (551, 3664975), (589, 3428525), (725, 2785381), (775, 2605679), (899, 2246275), (2755, 732995), (2945, 685705), (4495, 449255), (4729, 427025), (13775, 146599), (14725, 137141), (17081, 118225), (22475, 89851), (23645, 85405)]