28551712

素因数分解:

$2^5\times 7^2\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:294

約数の個数: 72

約数和(自身を含む): 66361680

約数和(自身を除く): 37809968

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 131, 139, 196, 224, 262, 278, 392, 524, 556, 784, 917, 973, 1048, 1112, 1568, 1834, 1946, 2096, 2224, 3668, 3892, 4192, 4448, 6419, 6811, 7336, 7784, 12838, 13622, 14672, 15568, 18209, 25676, 27244, 29344, 31136, 36418, 51352, 54488, 72836, 102704, 108976, 127463, 145672, 205408, 217952, 254926, 291344, 509852, 582688, 892241, 1019704, 1784482, 2039408, 3568964, 4078816, 7137928, 14275856, 28551712]

約数ペア:

[(1, 28551712), (2, 14275856), (4, 7137928), (7, 4078816), (8, 3568964), (14, 2039408), (16, 1784482), (28, 1019704), (32, 892241), (49, 582688), (56, 509852), (98, 291344), (112, 254926), (131, 217952), (139, 205408), (196, 145672), (224, 127463), (262, 108976), (278, 102704), (392, 72836), (524, 54488), (556, 51352), (784, 36418), (917, 31136), (973, 29344), (1048, 27244), (1112, 25676), (1568, 18209), (1834, 15568), (1946, 14672), (2096, 13622), (2224, 12838), (3668, 7784), (3892, 7336), (4192, 6811), (4448, 6419)]