87388660

素因数分解:

$2^2\times 5^1\times {\mathrm{1607}}^1\times {\mathrm{2719}}^1$

素因数の和:4335

約数の個数: 24

約数和(自身を含む): 183697920

約数和(自身を除く): 96309260

約数列:

[1, 2, 4, 5, 10, 20, 1607, 2719, 3214, 5438, 6428, 8035, 10876, 13595, 16070, 27190, 32140, 54380, 4369433, 8738866, 17477732, 21847165, 43694330, 87388660]

約数ペア:

[(1, 87388660), (2, 43694330), (4, 21847165), (5, 17477732), (10, 8738866), (20, 4369433), (1607, 54380), (2719, 32140), (3214, 27190), (5438, 16070), (6428, 13595), (8035, 10876)]