40820075

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{4523}}^1$

素因数の和:4571

約数の個数: 18

約数和(自身を含む): 53432964

約数和(自身を除く): 12612889

約数列:

[1, 5, 19, 25, 95, 361, 475, 1805, 4523, 9025, 22615, 85937, 113075, 429685, 1632803, 2148425, 8164015, 40820075]

約数ペア:

[(1, 40820075), (5, 8164015), (19, 2148425), (25, 1632803), (95, 429685), (361, 113075), (475, 85937), (1805, 22615), (4523, 9025)]