20218588325

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{193}}^1\times {\mathrm{283}}^1$

素因数の和:583

約数の個数: 96

約数和(自身を含む): 29267876736

約数和(自身を除く): 9049288411

約数列:

[1, 5, 13, 17, 25, 65, 67, 85, 193, 221, 283, 325, 335, 425, 871, 965, 1105, 1139, 1415, 1675, 2509, 3281, 3679, 4355, 4811, 4825, 5525, 5695, 7075, 12545, 12931, 14807, 16405, 18395, 18961, 21775, 24055, 28475, 42653, 54619, 62543, 62725, 64655, 74035, 82025, 91975, 94805, 120275, 168103, 213265, 219827, 246493, 273095, 312715, 322337, 323275, 370175, 474025, 710047, 840515, 928523, 1066325, 1099135, 1232465, 1365475, 1563575, 1611685, 2857751, 3550235, 3659473, 4190381, 4202575, 4642615, 5495675, 6162325, 8058425, 12070799, 14288755, 17751175, 18297365, 20951905, 23213075, 47573149, 60353995, 62211041, 71443775, 91486825, 104759525, 237865745, 301769975, 311055205, 808743533, 1189328725, 1555276025, 4043717665, 20218588325]

約数ペア:

[(1, 20218588325), (5, 4043717665), (13, 1555276025), (17, 1189328725), (25, 808743533), (65, 311055205), (67, 301769975), (85, 237865745), (193, 104759525), (221, 91486825), (283, 71443775), (325, 62211041), (335, 60353995), (425, 47573149), (871, 23213075), (965, 20951905), (1105, 18297365), (1139, 17751175), (1415, 14288755), (1675, 12070799), (2509, 8058425), (3281, 6162325), (3679, 5495675), (4355, 4642615), (4811, 4202575), (4825, 4190381), (5525, 3659473), (5695, 3550235), (7075, 2857751), (12545, 1611685), (12931, 1563575), (14807, 1365475), (16405, 1232465), (18395, 1099135), (18961, 1066325), (21775, 928523), (24055, 840515), (28475, 710047), (42653, 474025), (54619, 370175), (62543, 323275), (62725, 322337), (64655, 312715), (74035, 273095), (82025, 246493), (91975, 219827), (94805, 213265), (120275, 168103)]