65973475

素因数分解:

$5^2\times {\mathrm{89}}^1\times {\mathrm{149}}^1\times {\mathrm{199}}^1$

素因数の和:447

約数の個数: 24

約数和(自身を含む): 83700000

約数和(自身を除く): 17726525

約数列:

[1, 5, 25, 89, 149, 199, 445, 745, 995, 2225, 3725, 4975, 13261, 17711, 29651, 66305, 88555, 148255, 331525, 442775, 741275, 2638939, 13194695, 65973475]

約数ペア:

[(1, 65973475), (5, 13194695), (25, 2638939), (89, 741275), (149, 442775), (199, 331525), (445, 148255), (745, 88555), (995, 66305), (2225, 29651), (3725, 17711), (4975, 13261)]