20181256000

素因数分解:

$2^6\times 5^3\times {\mathrm{2522657}}^1$

素因数の和:2522684

約数の個数: 56

約数和(自身を含む): 49978900296

約数和(自身を除く): 29797644296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 800, 1000, 1600, 2000, 4000, 8000, 2522657, 5045314, 10090628, 12613285, 20181256, 25226570, 40362512, 50453140, 63066425, 80725024, 100906280, 126132850, 161450048, 201812560, 252265700, 315332125, 403625120, 504531400, 630664250, 807250240, 1009062800, 1261328500, 2018125600, 2522657000, 4036251200, 5045314000, 10090628000, 20181256000]

約数ペア:

[(1, 20181256000), (2, 10090628000), (4, 5045314000), (5, 4036251200), (8, 2522657000), (10, 2018125600), (16, 1261328500), (20, 1009062800), (25, 807250240), (32, 630664250), (40, 504531400), (50, 403625120), (64, 315332125), (80, 252265700), (100, 201812560), (125, 161450048), (160, 126132850), (200, 100906280), (250, 80725024), (320, 63066425), (400, 50453140), (500, 40362512), (800, 25226570), (1000, 20181256), (1600, 12613285), (2000, 10090628), (4000, 5045314), (8000, 2522657)]