81554816

素因数分解:

$2^7\times 7^2\times {\mathrm{13003}}^1$

素因数の和:13031

約数の個数: 48

約数和(自身を含む): 189013140

約数和(自身を除く): 107458324

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 392, 448, 784, 896, 1568, 3136, 6272, 13003, 26006, 52012, 91021, 104024, 182042, 208048, 364084, 416096, 637147, 728168, 832192, 1274294, 1456336, 1664384, 2548588, 2912672, 5097176, 5825344, 10194352, 11650688, 20388704, 40777408, 81554816]

約数ペア:

[(1, 81554816), (2, 40777408), (4, 20388704), (7, 11650688), (8, 10194352), (14, 5825344), (16, 5097176), (28, 2912672), (32, 2548588), (49, 1664384), (56, 1456336), (64, 1274294), (98, 832192), (112, 728168), (128, 637147), (196, 416096), (224, 364084), (392, 208048), (448, 182042), (784, 104024), (896, 91021), (1568, 52012), (3136, 26006), (6272, 13003)]