855788000

素因数分解:

$2^5\times 5^3\times {\mathrm{213947}}^1$

素因数の和:213972

約数の個数: 48

約数和(自身を含む): 2102680944

約数和(自身を除く): 1246892944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 213947, 427894, 855788, 1069735, 1711576, 2139470, 3423152, 4278940, 5348675, 6846304, 8557880, 10697350, 17115760, 21394700, 26743375, 34231520, 42789400, 53486750, 85578800, 106973500, 171157600, 213947000, 427894000, 855788000]

約数ペア:

[(1, 855788000), (2, 427894000), (4, 213947000), (5, 171157600), (8, 106973500), (10, 85578800), (16, 53486750), (20, 42789400), (25, 34231520), (32, 26743375), (40, 21394700), (50, 17115760), (80, 10697350), (100, 8557880), (125, 6846304), (160, 5348675), (200, 4278940), (250, 3423152), (400, 2139470), (500, 1711576), (800, 1069735), (1000, 855788), (2000, 427894), (4000, 213947)]