257209830

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{18679}}^1$

素因数の和:18715

約数の個数: 80

約数和(自身を含む): 732330720

約数和(自身を除く): 475120890

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 27, 30, 34, 45, 51, 54, 81, 85, 90, 102, 135, 153, 162, 170, 255, 270, 306, 405, 459, 510, 765, 810, 918, 1377, 1530, 2295, 2754, 4590, 6885, 13770, 18679, 37358, 56037, 93395, 112074, 168111, 186790, 280185, 317543, 336222, 504333, 560370, 635086, 840555, 952629, 1008666, 1512999, 1587715, 1681110, 1905258, 2521665, 2857887, 3025998, 3175430, 4763145, 5043330, 5715774, 7564995, 8573661, 9526290, 14289435, 15129990, 17147322, 25720983, 28578870, 42868305, 51441966, 85736610, 128604915, 257209830]

約数ペア:

[(1, 257209830), (2, 128604915), (3, 85736610), (5, 51441966), (6, 42868305), (9, 28578870), (10, 25720983), (15, 17147322), (17, 15129990), (18, 14289435), (27, 9526290), (30, 8573661), (34, 7564995), (45, 5715774), (51, 5043330), (54, 4763145), (81, 3175430), (85, 3025998), (90, 2857887), (102, 2521665), (135, 1905258), (153, 1681110), (162, 1587715), (170, 1512999), (255, 1008666), (270, 952629), (306, 840555), (405, 635086), (459, 560370), (510, 504333), (765, 336222), (810, 317543), (918, 280185), (1377, 186790), (1530, 168111), (2295, 112074), (2754, 93395), (4590, 56037), (6885, 37358), (13770, 18679)]