81663904

素因数分解:

$2^5\times 7^1\times {\mathrm{364571}}^1$

素因数の和:364588

約数の個数: 24

約数和(自身を含む): 183744288

約数和(自身を除く): 102080384

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 364571, 729142, 1458284, 2551997, 2916568, 5103994, 5833136, 10207988, 11666272, 20415976, 40831952, 81663904]

約数ペア:

[(1, 81663904), (2, 40831952), (4, 20415976), (7, 11666272), (8, 10207988), (14, 5833136), (16, 5103994), (28, 2916568), (32, 2551997), (56, 1458284), (112, 729142), (224, 364571)]