257666265

素因数分解:

$3^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6841}}^1$

素因数の和:6892

約数の個数: 48

約数和(自身を含む): 478173696

約数和(自身を除く): 220507431

約数列:

[1, 3, 5, 9, 15, 27, 31, 45, 81, 93, 135, 155, 243, 279, 405, 465, 837, 1215, 1395, 2511, 4185, 6841, 7533, 12555, 20523, 34205, 37665, 61569, 102615, 184707, 212071, 307845, 554121, 636213, 923535, 1060355, 1662363, 1908639, 2770605, 3181065, 5725917, 8311815, 9543195, 17177751, 28629585, 51533253, 85888755, 257666265]

約数ペア:

[(1, 257666265), (3, 85888755), (5, 51533253), (9, 28629585), (15, 17177751), (27, 9543195), (31, 8311815), (45, 5725917), (81, 3181065), (93, 2770605), (135, 1908639), (155, 1662363), (243, 1060355), (279, 923535), (405, 636213), (465, 554121), (837, 307845), (1215, 212071), (1395, 184707), (2511, 102615), (4185, 61569), (6841, 37665), (7533, 34205), (12555, 20523)]