127698880

素因数分解:

$2^6\times 5^1\times {\mathrm{399059}}^1$

素因数の和:399076

約数の個数: 28

約数和(自身を含む): 304083720

約数和(自身を除く): 176384840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 399059, 798118, 1596236, 1995295, 3192472, 3990590, 6384944, 7981180, 12769888, 15962360, 25539776, 31924720, 63849440, 127698880]

約数ペア:

[(1, 127698880), (2, 63849440), (4, 31924720), (5, 25539776), (8, 15962360), (10, 12769888), (16, 7981180), (20, 6384944), (32, 3990590), (40, 3192472), (64, 1995295), (80, 1596236), (160, 798118), (320, 399059)]