638633216

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{1511}}^1$

素因数の和:1667

約数の個数: 72

約数和(自身を含む): 1384556544

約数和(自身を除く): 745923328

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 127, 128, 208, 254, 256, 416, 508, 832, 1016, 1511, 1651, 1664, 2032, 3022, 3302, 3328, 4064, 6044, 6604, 8128, 12088, 13208, 16256, 19643, 24176, 26416, 32512, 39286, 48352, 52832, 78572, 96704, 105664, 157144, 191897, 193408, 211328, 314288, 383794, 386816, 422656, 628576, 767588, 1257152, 1535176, 2494661, 2514304, 3070352, 4989322, 5028608, 6140704, 9978644, 12281408, 19957288, 24562816, 39914576, 49125632, 79829152, 159658304, 319316608, 638633216]

約数ペア:

[(1, 638633216), (2, 319316608), (4, 159658304), (8, 79829152), (13, 49125632), (16, 39914576), (26, 24562816), (32, 19957288), (52, 12281408), (64, 9978644), (104, 6140704), (127, 5028608), (128, 4989322), (208, 3070352), (254, 2514304), (256, 2494661), (416, 1535176), (508, 1257152), (832, 767588), (1016, 628576), (1511, 422656), (1651, 386816), (1664, 383794), (2032, 314288), (3022, 211328), (3302, 193408), (3328, 191897), (4064, 157144), (6044, 105664), (6604, 96704), (8128, 78572), (12088, 52832), (13208, 48352), (16256, 39286), (19643, 32512), (24176, 26416)]