64125425

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{397}}^1$

素因数の和:498

約数の個数: 48

約数和(自身を含む): 99493632

約数和(自身を除く): 35368207

約数列:

[1, 5, 7, 13, 25, 35, 65, 71, 91, 175, 325, 355, 397, 455, 497, 923, 1775, 1985, 2275, 2485, 2779, 4615, 5161, 6461, 9925, 12425, 13895, 23075, 25805, 28187, 32305, 36127, 69475, 129025, 140935, 161525, 180635, 197309, 366431, 704675, 903175, 986545, 1832155, 2565017, 4932725, 9160775, 12825085, 64125425]

約数ペア:

[(1, 64125425), (5, 12825085), (7, 9160775), (13, 4932725), (25, 2565017), (35, 1832155), (65, 986545), (71, 903175), (91, 704675), (175, 366431), (325, 197309), (355, 180635), (397, 161525), (455, 140935), (497, 129025), (923, 69475), (1775, 36127), (1985, 32305), (2275, 28187), (2485, 25805), (2779, 23075), (4615, 13895), (5161, 12425), (6461, 9925)]