1616875

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{199}}^1$

素因数の和:232

約数の個数: 20

約数和(自身を含む): 2186800

約数和(自身を除く): 569925

約数列:

[1, 5, 13, 25, 65, 125, 199, 325, 625, 995, 1625, 2587, 4975, 8125, 12935, 24875, 64675, 124375, 323375, 1616875]

約数ペア:

[(1, 1616875), (5, 323375), (13, 124375), (25, 64675), (65, 24875), (125, 12935), (199, 8125), (325, 4975), (625, 2587), (995, 1625)]