128523969

素因数分解:

$3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{179}}^1$

素因数の和:355

約数の個数: 64

約数和(自身を含む): 228096000

約数和(自身を除く): 99572031

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 87, 131, 179, 189, 203, 261, 393, 537, 609, 783, 917, 1179, 1253, 1611, 1827, 2751, 3537, 3759, 3799, 4833, 5191, 5481, 8253, 11277, 11397, 15573, 23449, 24759, 26593, 33831, 34191, 36337, 46719, 70347, 79779, 102573, 109011, 140157, 164143, 211041, 239337, 327033, 492429, 633123, 680021, 718011, 981099, 1477287, 2040063, 4431861, 4760147, 6120189, 14280441, 18360567, 42841323, 128523969]

約数ペア:

[(1, 128523969), (3, 42841323), (7, 18360567), (9, 14280441), (21, 6120189), (27, 4760147), (29, 4431861), (63, 2040063), (87, 1477287), (131, 981099), (179, 718011), (189, 680021), (203, 633123), (261, 492429), (393, 327033), (537, 239337), (609, 211041), (783, 164143), (917, 140157), (1179, 109011), (1253, 102573), (1611, 79779), (1827, 70347), (2751, 46719), (3537, 36337), (3759, 34191), (3799, 33831), (4833, 26593), (5191, 24759), (5481, 23449), (8253, 15573), (11277, 11397)]