87627940

素因数分解:

$2^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{31981}}^1$

素因数の和:32127

約数の個数: 24

約数和(自身を含む): 185367672

約数和(自身を除く): 97739732

約数列:

[1, 2, 4, 5, 10, 20, 137, 274, 548, 685, 1370, 2740, 31981, 63962, 127924, 159905, 319810, 639620, 4381397, 8762794, 17525588, 21906985, 43813970, 87627940]

約数ペア:

[(1, 87627940), (2, 43813970), (4, 21906985), (5, 17525588), (10, 8762794), (20, 4381397), (137, 639620), (274, 319810), (548, 159905), (685, 127924), (1370, 63962), (2740, 31981)]