20050055

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{1697}}^1$

素因数の和:1858

約数の個数: 16

約数和(自身を含む): 25673760

約数和(自身を除く): 5623705

約数列:

[1, 5, 17, 85, 139, 695, 1697, 2363, 8485, 11815, 28849, 144245, 235883, 1179415, 4010011, 20050055]

約数ペア:

[(1, 20050055), (5, 4010011), (17, 1179415), (85, 235883), (139, 144245), (695, 28849), (1697, 11815), (2363, 8485)]