20128123552

素因数分解:

$2^5\times {\mathrm{101}}^2\times {\mathrm{197}}^1\times {\mathrm{313}}^1$

素因数の和:722

約数の個数: 72

約数和(自身を含む): 40355161308

約数和(自身を除く): 20227037756

約数列:

[1, 2, 4, 8, 16, 32, 101, 197, 202, 313, 394, 404, 626, 788, 808, 1252, 1576, 1616, 2504, 3152, 3232, 5008, 6304, 10016, 10201, 19897, 20402, 31613, 39794, 40804, 61661, 63226, 79588, 81608, 123322, 126452, 159176, 163216, 246644, 252904, 318352, 326432, 493288, 505808, 636704, 986576, 1011616, 1973152, 2009597, 3192913, 4019194, 6227761, 6385826, 8038388, 12455522, 12771652, 16076776, 24911044, 25543304, 32153552, 49822088, 51086608, 64307104, 99644176, 102173216, 199288352, 629003861, 1258007722, 2516015444, 5032030888, 10064061776, 20128123552]

約数ペア:

[(1, 20128123552), (2, 10064061776), (4, 5032030888), (8, 2516015444), (16, 1258007722), (32, 629003861), (101, 199288352), (197, 102173216), (202, 99644176), (313, 64307104), (394, 51086608), (404, 49822088), (626, 32153552), (788, 25543304), (808, 24911044), (1252, 16076776), (1576, 12771652), (1616, 12455522), (2504, 8038388), (3152, 6385826), (3232, 6227761), (5008, 4019194), (6304, 3192913), (10016, 2009597), (10201, 1973152), (19897, 1011616), (20402, 986576), (31613, 636704), (39794, 505808), (40804, 493288), (61661, 326432), (63226, 318352), (79588, 252904), (81608, 246644), (123322, 163216), (126452, 159176)]