20810664

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{263}}^1$

素因数の和:439

約数の個数: 96

約数和(自身を含む): 65070720

約数和(自身を除く): 44260056

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 157, 168, 252, 263, 314, 471, 504, 526, 628, 789, 942, 1052, 1099, 1256, 1413, 1578, 1841, 1884, 2104, 2198, 2367, 2826, 3156, 3297, 3682, 3768, 4396, 4734, 5523, 5652, 6312, 6594, 7364, 8792, 9468, 9891, 11046, 11304, 13188, 14728, 16569, 18936, 19782, 22092, 26376, 33138, 39564, 41291, 44184, 66276, 79128, 82582, 123873, 132552, 165164, 247746, 289037, 330328, 371619, 495492, 578074, 743238, 867111, 990984, 1156148, 1486476, 1734222, 2312296, 2601333, 2972952, 3468444, 5202666, 6936888, 10405332, 20810664]

約数ペア:

[(1, 20810664), (2, 10405332), (3, 6936888), (4, 5202666), (6, 3468444), (7, 2972952), (8, 2601333), (9, 2312296), (12, 1734222), (14, 1486476), (18, 1156148), (21, 990984), (24, 867111), (28, 743238), (36, 578074), (42, 495492), (56, 371619), (63, 330328), (72, 289037), (84, 247746), (126, 165164), (157, 132552), (168, 123873), (252, 82582), (263, 79128), (314, 66276), (471, 44184), (504, 41291), (526, 39564), (628, 33138), (789, 26376), (942, 22092), (1052, 19782), (1099, 18936), (1256, 16569), (1413, 14728), (1578, 13188), (1841, 11304), (1884, 11046), (2104, 9891), (2198, 9468), (2367, 8792), (2826, 7364), (3156, 6594), (3297, 6312), (3682, 5652), (3768, 5523), (4396, 4734)]