20204329136

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{12823}}^1$

素因数の和:12994

約数の個数: 80

約数和(自身を含む): 42362288640

約数和(自身を除く): 22157959504

約数列:

[1, 2, 4, 8, 16, 19, 38, 71, 73, 76, 142, 146, 152, 284, 292, 304, 568, 584, 1136, 1168, 1349, 1387, 2698, 2774, 5183, 5396, 5548, 10366, 10792, 11096, 12823, 20732, 21584, 22192, 25646, 41464, 51292, 82928, 98477, 102584, 196954, 205168, 243637, 393908, 487274, 787816, 910433, 936079, 974548, 1575632, 1820866, 1872158, 1949096, 3641732, 3744316, 3898192, 7283464, 7488632, 14566928, 14977264, 17298227, 17785501, 34596454, 35571002, 66461609, 69192908, 71142004, 132923218, 138385816, 142284008, 265846436, 276771632, 284568016, 531692872, 1063385744, 1262770571, 2525541142, 5051082284, 10102164568, 20204329136]

約数ペア:

[(1, 20204329136), (2, 10102164568), (4, 5051082284), (8, 2525541142), (16, 1262770571), (19, 1063385744), (38, 531692872), (71, 284568016), (73, 276771632), (76, 265846436), (142, 142284008), (146, 138385816), (152, 132923218), (284, 71142004), (292, 69192908), (304, 66461609), (568, 35571002), (584, 34596454), (1136, 17785501), (1168, 17298227), (1349, 14977264), (1387, 14566928), (2698, 7488632), (2774, 7283464), (5183, 3898192), (5396, 3744316), (5548, 3641732), (10366, 1949096), (10792, 1872158), (11096, 1820866), (12823, 1575632), (20732, 974548), (21584, 936079), (22192, 910433), (25646, 787816), (41464, 487274), (51292, 393908), (82928, 243637), (98477, 205168), (102584, 196954)]