81542045

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{643}}^1\times {\mathrm{1951}}^1$

素因数の和:2612

約数の個数: 16

約数和(自身を含む): 105595392

約数和(自身を除く): 24053347

約数列:

[1, 5, 13, 65, 643, 1951, 3215, 8359, 9755, 25363, 41795, 126815, 1254493, 6272465, 16308409, 81542045]

約数ペア:

[(1, 81542045), (5, 16308409), (13, 6272465), (65, 1254493), (643, 126815), (1951, 41795), (3215, 25363), (8359, 9755)]