20113925

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{311}}^1$

素因数の和:533

約数の個数: 24

約数和(自身を含む): 27081600

約数和(自身を除く): 6967675

約数列:

[1, 5, 13, 25, 65, 199, 311, 325, 995, 1555, 2587, 4043, 4975, 7775, 12935, 20215, 61889, 64675, 101075, 309445, 804557, 1547225, 4022785, 20113925]

約数ペア:

[(1, 20113925), (5, 4022785), (13, 1547225), (25, 804557), (65, 309445), (199, 101075), (311, 64675), (325, 61889), (995, 20215), (1555, 12935), (2587, 7775), (4043, 4975)]