81279665

素因数分解:

$5^1\times {\mathrm{109}}^1\times {\mathrm{293}}^1\times {\mathrm{509}}^1$

素因数の和:916

約数の個数: 16

約数和(自身を含む): 98960400

約数和(自身を除く): 17680735

約数列:

[1, 5, 109, 293, 509, 545, 1465, 2545, 31937, 55481, 149137, 159685, 277405, 745685, 16255933, 81279665]

約数ペア:

[(1, 81279665), (5, 16255933), (109, 745685), (293, 277405), (509, 159685), (545, 149137), (1465, 55481), (2545, 31937)]