51379600

素因数分解:

$2^4\times 5^2\times {\mathrm{128449}}^1$

素因数の和:128467

約数の個数: 30

約数和(自身を含む): 123440450

約数和(自身を除く): 72060850

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 128449, 256898, 513796, 642245, 1027592, 1284490, 2055184, 2568980, 3211225, 5137960, 6422450, 10275920, 12844900, 25689800, 51379600]

約数ペア:

[(1, 51379600), (2, 25689800), (4, 12844900), (5, 10275920), (8, 6422450), (10, 5137960), (16, 3211225), (20, 2568980), (25, 2055184), (40, 1284490), (50, 1027592), (80, 642245), (100, 513796), (200, 256898), (400, 128449)]