81654130

素因数分解:

$2^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{52009}}^1$

素因数の和:52173

約数の個数: 16

約数和(自身を含む): 147916440

約数和(自身を除く): 66262310

約数列:

[1, 2, 5, 10, 157, 314, 785, 1570, 52009, 104018, 260045, 520090, 8165413, 16330826, 40827065, 81654130]

約数ペア:

[(1, 81654130), (2, 40827065), (5, 16330826), (10, 8165413), (157, 520090), (314, 260045), (785, 104018), (1570, 52009)]