28131265

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1\times {\mathrm{727}}^1$

素因数の和:912

約数の個数: 16

約数和(自身を含む): 34594560

約数和(自身を除く): 6463295

約数列:

[1, 5, 71, 109, 355, 545, 727, 3635, 7739, 38695, 51617, 79243, 258085, 396215, 5626253, 28131265]

約数ペア:

[(1, 28131265), (5, 5626253), (71, 396215), (109, 258085), (355, 79243), (545, 51617), (727, 38695), (3635, 7739)]