139862905

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{43913}}^1$

素因数の和:43945

約数の個数: 24

約数和(自身を含む): 210260232

約数和(自身を除く): 70397327

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 3185, 43913, 219565, 307391, 570869, 1536955, 2151737, 2854345, 3996083, 10758685, 19980415, 27972581, 139862905]

約数ペア:

[(1, 139862905), (5, 27972581), (7, 19980415), (13, 10758685), (35, 3996083), (49, 2854345), (65, 2151737), (91, 1536955), (245, 570869), (455, 307391), (637, 219565), (3185, 43913)]