81930905

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{137699}}^1$

素因数の和:137728

約数の個数: 16

約数和(自身を含む): 118972800

約数和(自身を除く): 37041895

約数列:

[1, 5, 7, 17, 35, 85, 119, 595, 137699, 688495, 963893, 2340883, 4819465, 11704415, 16386181, 81930905]

約数ペア:

[(1, 81930905), (5, 16386181), (7, 11704415), (17, 4819465), (35, 2340883), (85, 963893), (119, 688495), (595, 137699)]