128915728

素因数分解:

$2^4\times {\mathrm{1019}}^1\times {\mathrm{7907}}^1$

素因数の和:8934

約数の個数: 20

約数和(自身を含む): 250050960

約数和(自身を除く): 121135232

約数列:

[1, 2, 4, 8, 16, 1019, 2038, 4076, 7907, 8152, 15814, 16304, 31628, 63256, 126512, 8057233, 16114466, 32228932, 64457864, 128915728]

約数ペア:

[(1, 128915728), (2, 64457864), (4, 32228932), (8, 16114466), (16, 8057233), (1019, 126512), (2038, 63256), (4076, 31628), (7907, 16304), (8152, 15814)]