81305315

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{178693}}^1$

素因数の和:178718

約数の個数: 16

約数和(自身を含む): 120082368

約数和(自身を除く): 38777053

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 178693, 893465, 1250851, 2323009, 6254255, 11615045, 16261063, 81305315]

約数ペア:

[(1, 81305315), (5, 16261063), (7, 11615045), (13, 6254255), (35, 2323009), (65, 1250851), (91, 893465), (455, 178693)]