81644925

素因数分解:

$3^1\times 5^2\times {\mathrm{643}}^1\times {\mathrm{1693}}^1$

素因数の和:2349

約数の個数: 24

約数和(自身を含む): 135276064

約数和(自身を除く): 53631139

約数列:

[1, 3, 5, 15, 25, 75, 643, 1693, 1929, 3215, 5079, 8465, 9645, 16075, 25395, 42325, 48225, 126975, 1088599, 3265797, 5442995, 16328985, 27214975, 81644925]

約数ペア:

[(1, 81644925), (3, 27214975), (5, 16328985), (15, 5442995), (25, 3265797), (75, 1088599), (643, 126975), (1693, 48225), (1929, 42325), (3215, 25395), (5079, 16075), (8465, 9645)]