28786745

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{4139}}^1$

素因数の和:4264

約数の個数: 16

約数和(自身を含む): 37558080

約数和(自身を除く): 8771335

約数列:

[1, 5, 13, 65, 107, 535, 1391, 4139, 6955, 20695, 53807, 269035, 442873, 2214365, 5757349, 28786745]

約数ペア:

[(1, 28786745), (5, 5757349), (13, 2214365), (65, 442873), (107, 269035), (535, 53807), (1391, 20695), (4139, 6955)]