28457200

素因数分解:

$2^4\times 5^2\times {\mathrm{71143}}^1$

素因数の和:71161

約数の個数: 30

約数和(自身を含む): 68369384

約数和(自身を除く): 39912184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 71143, 142286, 284572, 355715, 569144, 711430, 1138288, 1422860, 1778575, 2845720, 3557150, 5691440, 7114300, 14228600, 28457200]

約数ペア:

[(1, 28457200), (2, 14228600), (4, 7114300), (5, 5691440), (8, 3557150), (10, 2845720), (16, 1778575), (20, 1422860), (25, 1138288), (40, 711430), (50, 569144), (80, 355715), (100, 284572), (200, 142286), (400, 71143)]