78255891

素因数分解:

$3^2\times 7^2\times {\mathrm{29}}^2\times {\mathrm{211}}^1$

素因数の和:289

約数の個数: 54

約数和(自身を含む): 136827132

約数和(自身を除く): 58571241

約数列:

[1, 3, 7, 9, 21, 29, 49, 63, 87, 147, 203, 211, 261, 441, 609, 633, 841, 1421, 1477, 1827, 1899, 2523, 4263, 4431, 5887, 6119, 7569, 10339, 12789, 13293, 17661, 18357, 31017, 41209, 42833, 52983, 55071, 93051, 123627, 128499, 177451, 299831, 370881, 385497, 532353, 899493, 1242157, 1597059, 2698479, 3726471, 8695099, 11179413, 26085297, 78255891]

約数ペア:

[(1, 78255891), (3, 26085297), (7, 11179413), (9, 8695099), (21, 3726471), (29, 2698479), (49, 1597059), (63, 1242157), (87, 899493), (147, 532353), (203, 385497), (211, 370881), (261, 299831), (441, 177451), (609, 128499), (633, 123627), (841, 93051), (1421, 55071), (1477, 52983), (1827, 42833), (1899, 41209), (2523, 31017), (4263, 18357), (4431, 17661), (5887, 13293), (6119, 12789), (7569, 10339)]