28515020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{467}}^1$

素因数の和:590

約数の個数: 48

約数和(自身を含む): 62270208

約数和(自身を除く): 33755188

約数列:

[1, 2, 4, 5, 10, 20, 43, 71, 86, 142, 172, 215, 284, 355, 430, 467, 710, 860, 934, 1420, 1868, 2335, 3053, 4670, 6106, 9340, 12212, 15265, 20081, 30530, 33157, 40162, 61060, 66314, 80324, 100405, 132628, 165785, 200810, 331570, 401620, 663140, 1425751, 2851502, 5703004, 7128755, 14257510, 28515020]

約数ペア:

[(1, 28515020), (2, 14257510), (4, 7128755), (5, 5703004), (10, 2851502), (20, 1425751), (43, 663140), (71, 401620), (86, 331570), (142, 200810), (172, 165785), (215, 132628), (284, 100405), (355, 80324), (430, 66314), (467, 61060), (710, 40162), (860, 33157), (934, 30530), (1420, 20081), (1868, 15265), (2335, 12212), (3053, 9340), (4670, 6106)]