87660220

素因数分解:

$2^2\times 5^1\times {\mathrm{4383011}}^1$

素因数の和:4383020

約数の個数: 12

約数和(自身を含む): 184086504

約数和(自身を除く): 96426284

約数列:

[1, 2, 4, 5, 10, 20, 4383011, 8766022, 17532044, 21915055, 43830110, 87660220]

約数ペア:

[(1, 87660220), (2, 43830110), (4, 21915055), (5, 17532044), (10, 8766022), (20, 4383011)]