18104420

素因数分解:

$2^2\times 5^1\times {\mathrm{719}}^1\times {\mathrm{1259}}^1$

素因数の和:1987

約数の個数: 24

約数和(自身を含む): 38102400

約数和(自身を除く): 19997980

約数列:

[1, 2, 4, 5, 10, 20, 719, 1259, 1438, 2518, 2876, 3595, 5036, 6295, 7190, 12590, 14380, 25180, 905221, 1810442, 3620884, 4526105, 9052210, 18104420]

約数ペア:

[(1, 18104420), (2, 9052210), (4, 4526105), (5, 3620884), (10, 1810442), (20, 905221), (719, 25180), (1259, 14380), (1438, 12590), (2518, 7190), (2876, 6295), (3595, 5036)]