639774952

素因数分解:

$2^3\times {\mathrm{367}}^1\times {\mathrm{217907}}^1$

素因数の和:218280

約数の個数: 16

約数和(自身を含む): 1202852160

約数和(自身を除く): 563077208

約数列:

[1, 2, 4, 8, 367, 734, 1468, 2936, 217907, 435814, 871628, 1743256, 79971869, 159943738, 319887476, 639774952]

約数ペア:

[(1, 639774952), (2, 319887476), (4, 159943738), (8, 79971869), (367, 1743256), (734, 871628), (1468, 435814), (2936, 217907)]