20286260

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{15139}}^1$

素因数の和:15215

約数の個数: 24

約数和(自身を含む): 43239840

約数和(自身を除く): 22953580

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 15139, 30278, 60556, 75695, 151390, 302780, 1014313, 2028626, 4057252, 5071565, 10143130, 20286260]

約数ペア:

[(1, 20286260), (2, 10143130), (4, 5071565), (5, 4057252), (10, 2028626), (20, 1014313), (67, 302780), (134, 151390), (268, 75695), (335, 60556), (670, 30278), (1340, 15139)]