20101720

素因数分解:

$2^3\times 5^1\times {\mathrm{502543}}^1$

素因数の和:502554

約数の個数: 16

約数和(自身を含む): 45228960

約数和(自身を除く): 25127240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 502543, 1005086, 2010172, 2512715, 4020344, 5025430, 10050860, 20101720]

約数ペア:

[(1, 20101720), (2, 10050860), (4, 5025430), (5, 4020344), (8, 2512715), (10, 2010172), (20, 1005086), (40, 502543)]