71212425

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{281}}^1$

素因数の和:434

約数の個数: 48

約数和(自身を含む): 123087360

約数和(自身を除く): 51874935

約数列:

[1, 3, 5, 15, 25, 31, 75, 93, 109, 155, 281, 327, 465, 545, 775, 843, 1405, 1635, 2325, 2725, 3379, 4215, 7025, 8175, 8711, 10137, 16895, 21075, 26133, 30629, 43555, 50685, 84475, 91887, 130665, 153145, 217775, 253425, 459435, 653325, 765725, 949499, 2297175, 2848497, 4747495, 14242485, 23737475, 71212425]

約数ペア:

[(1, 71212425), (3, 23737475), (5, 14242485), (15, 4747495), (25, 2848497), (31, 2297175), (75, 949499), (93, 765725), (109, 653325), (155, 459435), (281, 253425), (327, 217775), (465, 153145), (545, 130665), (775, 91887), (843, 84475), (1405, 50685), (1635, 43555), (2325, 30629), (2725, 26133), (3379, 21075), (4215, 16895), (7025, 10137), (8175, 8711)]