129406940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{497719}}^1$

素因数の和:497741

約数の個数: 24

約数和(自身を含む): 292659360

約数和(自身を除く): 163252420

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 497719, 995438, 1990876, 2488595, 4977190, 6470347, 9954380, 12940694, 25881388, 32351735, 64703470, 129406940]

約数ペア:

[(1, 129406940), (2, 64703470), (4, 32351735), (5, 25881388), (10, 12940694), (13, 9954380), (20, 6470347), (26, 4977190), (52, 2488595), (65, 1990876), (130, 995438), (260, 497719)]