81336865

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{2539}}^1$

素因数の和:2736

約数の個数: 16

約数和(自身を含む): 100584000

約数和(自身を除く): 19247135

約数列:

[1, 5, 43, 149, 215, 745, 2539, 6407, 12695, 32035, 109177, 378311, 545885, 1891555, 16267373, 81336865]

約数ペア:

[(1, 81336865), (5, 16267373), (43, 1891555), (149, 545885), (215, 378311), (745, 109177), (2539, 32035), (6407, 12695)]