81400085

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{3469}}^1$

素因数の和:3525

約数の個数: 24

約数和(自身を含む): 111053880

約数和(自身を除く): 29653795

約数列:

[1, 5, 13, 19, 65, 95, 247, 361, 1235, 1805, 3469, 4693, 17345, 23465, 45097, 65911, 225485, 329555, 856843, 1252309, 4284215, 6261545, 16280017, 81400085]

約数ペア:

[(1, 81400085), (5, 16280017), (13, 6261545), (19, 4284215), (65, 1252309), (95, 856843), (247, 329555), (361, 225485), (1235, 65911), (1805, 45097), (3469, 23465), (4693, 17345)]