258885380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{995713}}^1$

素因数の和:995735

約数の個数: 24

約数和(自身を含む): 585479832

約数和(自身を除く): 326594452

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 995713, 1991426, 3982852, 4978565, 9957130, 12944269, 19914260, 25888538, 51777076, 64721345, 129442690, 258885380]

約数ペア:

[(1, 258885380), (2, 129442690), (4, 64721345), (5, 51777076), (10, 25888538), (13, 19914260), (20, 12944269), (26, 9957130), (52, 4978565), (65, 3982852), (130, 1991426), (260, 995713)]