20831950

素因数分解:

$2^1\times 5^2\times {\mathrm{401}}^1\times {\mathrm{1039}}^1$

素因数の和:1452

約数の個数: 24

約数和(自身を含む): 38881440

約数和(自身を除く): 18049490

約数列:

[1, 2, 5, 10, 25, 50, 401, 802, 1039, 2005, 2078, 4010, 5195, 10025, 10390, 20050, 25975, 51950, 416639, 833278, 2083195, 4166390, 10415975, 20831950]

約数ペア:

[(1, 20831950), (2, 10415975), (5, 4166390), (10, 2083195), (25, 833278), (50, 416639), (401, 51950), (802, 25975), (1039, 20050), (2005, 10390), (2078, 10025), (4010, 5195)]