28301720

素因数分解:

$2^3\times 5^1\times {\mathrm{707543}}^1$

素因数の和:707554

約数の個数: 16

約数和(自身を含む): 63678960

約数和(自身を除く): 35377240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 707543, 1415086, 2830172, 3537715, 5660344, 7075430, 14150860, 28301720]

約数ペア:

[(1, 28301720), (2, 14150860), (4, 7075430), (5, 5660344), (8, 3537715), (10, 2830172), (20, 1415086), (40, 707543)]