257947325

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{173}}^1$

素因数の和:318

約数の個数: 48

約数和(自身を含む): 351257280

約数和(自身を除く): 93309955

約数列:

[1, 5, 19, 25, 43, 73, 95, 173, 215, 365, 475, 817, 865, 1075, 1387, 1825, 3139, 3287, 4085, 4325, 6935, 7439, 12629, 15695, 16435, 20425, 34675, 37195, 59641, 63145, 78475, 82175, 141341, 185975, 239951, 298205, 315725, 543047, 706705, 1199755, 1491025, 2715235, 3533525, 5998775, 10317893, 13576175, 51589465, 257947325]

約数ペア:

[(1, 257947325), (5, 51589465), (19, 13576175), (25, 10317893), (43, 5998775), (73, 3533525), (95, 2715235), (173, 1491025), (215, 1199755), (365, 706705), (475, 543047), (817, 315725), (865, 298205), (1075, 239951), (1387, 185975), (1825, 141341), (3139, 82175), (3287, 78475), (4085, 63145), (4325, 59641), (6935, 37195), (7439, 34675), (12629, 20425), (15695, 16435)]