2066725

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{229}}^1$

素因数の和:277

約数の個数: 18

約数和(自身を含む): 2716530

約数和(自身を除く): 649805

約数列:

[1, 5, 19, 25, 95, 229, 361, 475, 1145, 1805, 4351, 5725, 9025, 21755, 82669, 108775, 413345, 2066725]

約数ペア:

[(1, 2066725), (5, 413345), (19, 108775), (25, 82669), (95, 21755), (229, 9025), (361, 5725), (475, 4351), (1145, 1805)]