81862645

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{2591}}^1$

素因数の和:2756

約数の個数: 16

約数和(自身を含む): 100776960

約数和(自身を除く): 18914315

約数列:

[1, 5, 71, 89, 355, 445, 2591, 6319, 12955, 31595, 183961, 230599, 919805, 1152995, 16372529, 81862645]

約数ペア:

[(1, 81862645), (5, 16372529), (71, 1152995), (89, 919805), (355, 230599), (445, 183961), (2591, 31595), (6319, 12955)]