130777520

素因数分解:

$2^4\times 5^1\times {\mathrm{1634719}}^1$

素因数の和:1634732

約数の個数: 20

約数和(自身を含む): 304057920

約数和(自身を除く): 173280400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1634719, 3269438, 6538876, 8173595, 13077752, 16347190, 26155504, 32694380, 65388760, 130777520]

約数ペア:

[(1, 130777520), (2, 65388760), (4, 32694380), (5, 26155504), (8, 16347190), (10, 13077752), (16, 8173595), (20, 6538876), (40, 3269438), (80, 1634719)]