20820860

素因数分解:

$2^2\times 5^1\times {\mathrm{373}}^1\times {\mathrm{2791}}^1$

素因数の和:3173

約数の個数: 24

約数和(自身を含む): 43856736

約数和(自身を除く): 23035876

約数列:

[1, 2, 4, 5, 10, 20, 373, 746, 1492, 1865, 2791, 3730, 5582, 7460, 11164, 13955, 27910, 55820, 1041043, 2082086, 4164172, 5205215, 10410430, 20820860]

約数ペア:

[(1, 20820860), (2, 10410430), (4, 5205215), (5, 4164172), (10, 2082086), (20, 1041043), (373, 55820), (746, 27910), (1492, 13955), (1865, 11164), (2791, 7460), (3730, 5582)]