81208856

素因数分解:

$2^3\times {\mathrm{47}}^1\times {\mathrm{215981}}^1$

素因数の和:216034

約数の個数: 16

約数和(自身を含む): 155507040

約数和(自身を除く): 74298184

約数列:

[1, 2, 4, 8, 47, 94, 188, 376, 215981, 431962, 863924, 1727848, 10151107, 20302214, 40604428, 81208856]

約数ペア:

[(1, 81208856), (2, 40604428), (4, 20302214), (8, 10151107), (47, 1727848), (94, 863924), (188, 431962), (376, 215981)]