20909589025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3784541}}^1$

素因数の和:3784581

約数の個数: 24

約数和(自身を含む): 29564842104

約数和(自身を除く): 8655253079

約数列:

[1, 5, 13, 17, 25, 65, 85, 221, 325, 425, 1105, 5525, 3784541, 18922705, 49199033, 64337197, 94613525, 245995165, 321685985, 836383561, 1229975825, 1608429925, 4181917805, 20909589025]

約数ペア:

[(1, 20909589025), (5, 4181917805), (13, 1608429925), (17, 1229975825), (25, 836383561), (65, 321685985), (85, 245995165), (221, 94613525), (325, 64337197), (425, 49199033), (1105, 18922705), (5525, 3784541)]