20856050

素因数分解:

$2^1\times 5^2\times {\mathrm{449}}^1\times {\mathrm{929}}^1$

素因数の和:1390

約数の個数: 24

約数和(自身を含む): 38920500

約数和(自身を除く): 18064450

約数列:

[1, 2, 5, 10, 25, 50, 449, 898, 929, 1858, 2245, 4490, 4645, 9290, 11225, 22450, 23225, 46450, 417121, 834242, 2085605, 4171210, 10428025, 20856050]

約数ペア:

[(1, 20856050), (2, 10428025), (5, 4171210), (10, 2085605), (25, 834242), (50, 417121), (449, 46450), (898, 23225), (929, 22450), (1858, 11225), (2245, 9290), (4490, 4645)]