1638128

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{2381}}^1$

素因数の和:2432

約数の個数: 20

約数和(自身を含む): 3249048

約数和(自身を除く): 1610920

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 2381, 4762, 9524, 19048, 38096, 102383, 204766, 409532, 819064, 1638128]

約数ペア:

[(1, 1638128), (2, 819064), (4, 409532), (8, 204766), (16, 102383), (43, 38096), (86, 19048), (172, 9524), (344, 4762), (688, 2381)]