81560645

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{41719}}^1$

素因数の和:41764

約数の個数: 16

約数和(自身を含む): 108138240

約数和(自身を除く): 26577595

約数列:

[1, 5, 17, 23, 85, 115, 391, 1955, 41719, 208595, 709223, 959537, 3546115, 4797685, 16312129, 81560645]

約数ペア:

[(1, 81560645), (5, 16312129), (17, 4797685), (23, 3546115), (85, 959537), (115, 709223), (391, 208595), (1955, 41719)]