1277312768

素因数分解:

$2^8\times {\mathrm{4989503}}^1$

素因数の和:4989519

約数の個数: 18

約数和(自身を含む): 2549636544

約数和(自身を除く): 1272323776

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 4989503, 9979006, 19958012, 39916024, 79832048, 159664096, 319328192, 638656384, 1277312768]

約数ペア:

[(1, 1277312768), (2, 638656384), (4, 319328192), (8, 159664096), (16, 79832048), (32, 39916024), (64, 19958012), (128, 9979006), (256, 4989503)]