81270865

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{379}}^1\times {\mathrm{3299}}^1$

素因数の和:3696

約数の個数: 16

約数和(自身を含む): 105336000

約数和(自身を除く): 24065135

約数列:

[1, 5, 13, 65, 379, 1895, 3299, 4927, 16495, 24635, 42887, 214435, 1250321, 6251605, 16254173, 81270865]

約数ペア:

[(1, 81270865), (5, 16254173), (13, 6251605), (65, 1250321), (379, 214435), (1895, 42887), (3299, 24635), (4927, 16495)]