2665975

素因数分解:

$5^2\times {\mathrm{13}}^2\times {\mathrm{631}}^1$

素因数の和:667

約数の個数: 18

約数和(自身を含む): 3585336

約数和(自身を除く): 919361

約数列:

[1, 5, 13, 25, 65, 169, 325, 631, 845, 3155, 4225, 8203, 15775, 41015, 106639, 205075, 533195, 2665975]

約数ペア:

[(1, 2665975), (5, 533195), (13, 205075), (25, 106639), (65, 41015), (169, 15775), (325, 8203), (631, 4225), (845, 3155)]