1261125405

素因数分解:

$3^2\times 5^1\times {\mathrm{28025009}}^1$

素因数の和:28025020

約数の個数: 12

約数和(自身を含む): 2185950780

約数和(自身を除く): 924825375

約数列:

[1, 3, 5, 9, 15, 45, 28025009, 84075027, 140125045, 252225081, 420375135, 1261125405]

約数ペア:

[(1, 1261125405), (3, 420375135), (5, 252225081), (9, 140125045), (15, 84075027), (45, 28025009)]