87213860

素因数分解:

$2^2\times 5^1\times {\mathrm{1049}}^1\times {\mathrm{4157}}^1$

素因数の和:5215

約数の個数: 24

約数和(自身を含む): 183367800

約数和(自身を除く): 96153940

約数列:

[1, 2, 4, 5, 10, 20, 1049, 2098, 4157, 4196, 5245, 8314, 10490, 16628, 20785, 20980, 41570, 83140, 4360693, 8721386, 17442772, 21803465, 43606930, 87213860]

約数ペア:

[(1, 87213860), (2, 43606930), (4, 21803465), (5, 17442772), (10, 8721386), (20, 4360693), (1049, 83140), (2098, 41570), (4157, 20980), (4196, 20785), (5245, 16628), (8314, 10490)]