81206525

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{101}}^1\times {\mathrm{1109}}^1$

素因数の和:1249

約数の個数: 24

約数和(自身を含む): 105294600

約数和(自身を除く): 24088075

約数列:

[1, 5, 25, 29, 101, 145, 505, 725, 1109, 2525, 2929, 5545, 14645, 27725, 32161, 73225, 112009, 160805, 560045, 804025, 2800225, 3248261, 16241305, 81206525]

約数ペア:

[(1, 81206525), (5, 16241305), (25, 3248261), (29, 2800225), (101, 804025), (145, 560045), (505, 160805), (725, 112009), (1109, 73225), (2525, 32161), (2929, 27725), (5545, 14645)]