257992080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{541}}^1\times {\mathrm{1987}}^1$

素因数の和:2544

約数の個数: 80

約数和(自身を含む): 801657024

約数和(自身を除く): 543664944

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 541, 1082, 1623, 1987, 2164, 2705, 3246, 3974, 4328, 5410, 5961, 6492, 7948, 8115, 8656, 9935, 10820, 11922, 12984, 15896, 16230, 19870, 21640, 23844, 25968, 29805, 31792, 32460, 39740, 43280, 47688, 59610, 64920, 79480, 95376, 119220, 129840, 158960, 238440, 476880, 1074967, 2149934, 3224901, 4299868, 5374835, 6449802, 8599736, 10749670, 12899604, 16124505, 17199472, 21499340, 25799208, 32249010, 42998680, 51598416, 64498020, 85997360, 128996040, 257992080]

約数ペア:

[(1, 257992080), (2, 128996040), (3, 85997360), (4, 64498020), (5, 51598416), (6, 42998680), (8, 32249010), (10, 25799208), (12, 21499340), (15, 17199472), (16, 16124505), (20, 12899604), (24, 10749670), (30, 8599736), (40, 6449802), (48, 5374835), (60, 4299868), (80, 3224901), (120, 2149934), (240, 1074967), (541, 476880), (1082, 238440), (1623, 158960), (1987, 129840), (2164, 119220), (2705, 95376), (3246, 79480), (3974, 64920), (4328, 59610), (5410, 47688), (5961, 43280), (6492, 39740), (7948, 32460), (8115, 31792), (8656, 29805), (9935, 25968), (10820, 23844), (11922, 21640), (12984, 19870), (15896, 16230)]