138954985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{31907}}^1$

素因数の和:31992

約数の個数: 16

約数和(自身を含む): 182258496

約数和(自身を除く): 43303511

約数列:

[1, 5, 13, 65, 67, 335, 871, 4355, 31907, 159535, 414791, 2073955, 2137769, 10688845, 27790997, 138954985]

約数ペア:

[(1, 138954985), (5, 27790997), (13, 10688845), (65, 2137769), (67, 2073955), (335, 414791), (871, 159535), (4355, 31907)]