81545815

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{66029}}^1$

素因数の和:66066

約数の個数: 16

約数和(自身を含む): 110930400

約数和(自身を除く): 29384585

約数列:

[1, 5, 13, 19, 65, 95, 247, 1235, 66029, 330145, 858377, 1254551, 4291885, 6272755, 16309163, 81545815]

約数ペア:

[(1, 81545815), (5, 16309163), (13, 6272755), (19, 4291885), (65, 1254551), (95, 858377), (247, 330145), (1235, 66029)]