2661815

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1321}}^1$

素因数の和:1370

約数の個数: 16

約数和(自身を含む): 3553536

約数和(自身を除く): 891721

約数列:

[1, 5, 13, 31, 65, 155, 403, 1321, 2015, 6605, 17173, 40951, 85865, 204755, 532363, 2661815]

約数ペア:

[(1, 2661815), (5, 532363), (13, 204755), (31, 85865), (65, 40951), (155, 17173), (403, 6605), (1321, 2015)]