203400400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{72643}}^1$

素因数の和:72668

約数の個数: 60

約数和(自身を含む): 558487072

約数和(自身を除く): 355086672

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 140, 175, 200, 280, 350, 400, 560, 700, 1400, 2800, 72643, 145286, 290572, 363215, 508501, 581144, 726430, 1017002, 1162288, 1452860, 1816075, 2034004, 2542505, 2905720, 3632150, 4068008, 5085010, 5811440, 7264300, 8136016, 10170020, 12712525, 14528600, 20340040, 25425050, 29057200, 40680080, 50850100, 101700200, 203400400]

約数ペア:

[(1, 203400400), (2, 101700200), (4, 50850100), (5, 40680080), (7, 29057200), (8, 25425050), (10, 20340040), (14, 14528600), (16, 12712525), (20, 10170020), (25, 8136016), (28, 7264300), (35, 5811440), (40, 5085010), (50, 4068008), (56, 3632150), (70, 2905720), (80, 2542505), (100, 2034004), (112, 1816075), (140, 1452860), (175, 1162288), (200, 1017002), (280, 726430), (350, 581144), (400, 508501), (560, 363215), (700, 290572), (1400, 145286), (2800, 72643)]