20302725

素因数分解:

$3^1\times 5^2\times {\mathrm{421}}^1\times {\mathrm{643}}^1$

素因数の和:1077

約数の個数: 24

約数和(自身を含む): 33699232

約数和(自身を除く): 13396507

約数列:

[1, 3, 5, 15, 25, 75, 421, 643, 1263, 1929, 2105, 3215, 6315, 9645, 10525, 16075, 31575, 48225, 270703, 812109, 1353515, 4060545, 6767575, 20302725]

約数ペア:

[(1, 20302725), (3, 6767575), (5, 4060545), (15, 1353515), (25, 812109), (75, 270703), (421, 48225), (643, 31575), (1263, 16075), (1929, 10525), (2105, 9645), (3215, 6315)]