21125200

素因数分解:

$2^4\times 5^2\times {\mathrm{52813}}^1$

素因数の和:52831

約数の個数: 30

約数和(自身を含む): 50754254

約数和(自身を除く): 29629054

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 52813, 105626, 211252, 264065, 422504, 528130, 845008, 1056260, 1320325, 2112520, 2640650, 4225040, 5281300, 10562600, 21125200]

約数ペア:

[(1, 21125200), (2, 10562600), (4, 5281300), (5, 4225040), (8, 2640650), (10, 2112520), (16, 1320325), (20, 1056260), (25, 845008), (40, 528130), (50, 422504), (80, 264065), (100, 211252), (200, 105626), (400, 52813)]