20017420

素因数分解:

$2^2\times 5^1\times {\mathrm{569}}^1\times {\mathrm{1759}}^1$

素因数の和:2337

約数の個数: 24

約数和(自身を含む): 42134400

約数和(自身を除く): 22116980

約数列:

[1, 2, 4, 5, 10, 20, 569, 1138, 1759, 2276, 2845, 3518, 5690, 7036, 8795, 11380, 17590, 35180, 1000871, 2001742, 4003484, 5004355, 10008710, 20017420]

約数ペア:

[(1, 20017420), (2, 10008710), (4, 5004355), (5, 4003484), (10, 2001742), (20, 1000871), (569, 35180), (1138, 17590), (1759, 11380), (2276, 8795), (2845, 7036), (3518, 5690)]