81140575

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{2689}}^1$

素因数の和:2787

約数の個数: 24

約数和(自身を含む): 108073440

約数和(自身を除く): 26932865

約数列:

[1, 5, 17, 25, 71, 85, 355, 425, 1207, 1775, 2689, 6035, 13445, 30175, 45713, 67225, 190919, 228565, 954595, 1142825, 3245623, 4772975, 16228115, 81140575]

約数ペア:

[(1, 81140575), (5, 16228115), (17, 4772975), (25, 3245623), (71, 1142825), (85, 954595), (355, 228565), (425, 190919), (1207, 67225), (1775, 45713), (2689, 30175), (6035, 13445)]