51372080

素因数分解:

$2^4\times 5^1\times {\mathrm{642151}}^1$

素因数の和:642164

約数の個数: 20

約数和(自身を含む): 119440272

約数和(自身を除く): 68068192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 642151, 1284302, 2568604, 3210755, 5137208, 6421510, 10274416, 12843020, 25686040, 51372080]

約数ペア:

[(1, 51372080), (2, 25686040), (4, 12843020), (5, 10274416), (8, 6421510), (10, 5137208), (16, 3210755), (20, 2568604), (40, 1284302), (80, 642151)]