81915904

素因数分解:

$2^{12}\times 7^1\times {\mathrm{2857}}^1$

素因数の和:2888

約数の個数: 52

約数和(自身を含む): 187279024

約数和(自身を除く): 105363120

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1024, 1792, 2048, 2857, 3584, 4096, 5714, 7168, 11428, 14336, 19999, 22856, 28672, 39998, 45712, 79996, 91424, 159992, 182848, 319984, 365696, 639968, 731392, 1279936, 1462784, 2559872, 2925568, 5119744, 5851136, 10239488, 11702272, 20478976, 40957952, 81915904]

約数ペア:

[(1, 81915904), (2, 40957952), (4, 20478976), (7, 11702272), (8, 10239488), (14, 5851136), (16, 5119744), (28, 2925568), (32, 2559872), (56, 1462784), (64, 1279936), (112, 731392), (128, 639968), (224, 365696), (256, 319984), (448, 182848), (512, 159992), (896, 91424), (1024, 79996), (1792, 45712), (2048, 39998), (2857, 28672), (3584, 22856), (4096, 19999), (5714, 14336), (7168, 11428)]