87665660

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{27919}}^1$

素因数の和:28085

約数の個数: 24

約数和(自身を含む): 185277120

約数和(自身を除く): 97611460

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 27919, 55838, 111676, 139595, 279190, 558380, 4383283, 8766566, 17533132, 21916415, 43832830, 87665660]

約数ペア:

[(1, 87665660), (2, 43832830), (4, 21916415), (5, 17533132), (10, 8766566), (20, 4383283), (157, 558380), (314, 279190), (628, 139595), (785, 111676), (1570, 55838), (3140, 27919)]