12780525

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1$

素因数の和:306

約数の個数: 48

約数和(自身を含む): 22855680

約数和(自身を除く): 10075155

約数列:

[1, 3, 5, 15, 23, 25, 31, 69, 75, 93, 115, 155, 239, 345, 465, 575, 713, 717, 775, 1195, 1725, 2139, 2325, 3565, 3585, 5497, 5975, 7409, 10695, 16491, 17825, 17925, 22227, 27485, 37045, 53475, 82455, 111135, 137425, 170407, 185225, 412275, 511221, 555675, 852035, 2556105, 4260175, 12780525]

約数ペア:

[(1, 12780525), (3, 4260175), (5, 2556105), (15, 852035), (23, 555675), (25, 511221), (31, 412275), (69, 185225), (75, 170407), (93, 137425), (115, 111135), (155, 82455), (239, 53475), (345, 37045), (465, 27485), (575, 22227), (713, 17925), (717, 17825), (775, 16491), (1195, 10695), (1725, 7409), (2139, 5975), (2325, 5497), (3565, 3585)]