1205625

素因数分解:

$3^1\times 5^4\times {\mathrm{643}}^1$

素因数の和:666

約数の個数: 20

約数和(自身を含む): 2011856

約数和(自身を除く): 806231

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 625, 643, 1875, 1929, 3215, 9645, 16075, 48225, 80375, 241125, 401875, 1205625]

約数ペア:

[(1, 1205625), (3, 401875), (5, 241125), (15, 80375), (25, 48225), (75, 16075), (125, 9645), (375, 3215), (625, 1929), (643, 1875)]