25391405

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{151}}^1\times {\mathrm{199}}^1$

素因数の和:381

約数の個数: 24

約数和(自身を含む): 33379200

約数和(自身を除く): 7987795

約数列:

[1, 5, 13, 65, 151, 169, 199, 755, 845, 995, 1963, 2587, 9815, 12935, 25519, 30049, 33631, 127595, 150245, 168155, 390637, 1953185, 5078281, 25391405]

約数ペア:

[(1, 25391405), (5, 5078281), (13, 1953185), (65, 390637), (151, 168155), (169, 150245), (199, 127595), (755, 33631), (845, 30049), (995, 25519), (1963, 12935), (2587, 9815)]