257580320

素因数分解:

$2^5\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1291}}^1$

素因数の和:1378

約数の個数: 96

約数和(自身を含む): 644656320

約数和(自身を除く): 387076000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 32, 40, 43, 58, 80, 86, 116, 145, 160, 172, 215, 232, 290, 344, 430, 464, 580, 688, 860, 928, 1160, 1247, 1291, 1376, 1720, 2320, 2494, 2582, 3440, 4640, 4988, 5164, 6235, 6455, 6880, 9976, 10328, 12470, 12910, 19952, 20656, 24940, 25820, 37439, 39904, 41312, 49880, 51640, 55513, 74878, 99760, 103280, 111026, 149756, 187195, 199520, 206560, 222052, 277565, 299512, 374390, 444104, 555130, 599024, 748780, 888208, 1110260, 1198048, 1497560, 1609877, 1776416, 2220520, 2995120, 3219754, 4441040, 5990240, 6439508, 8049385, 8882080, 12879016, 16098770, 25758032, 32197540, 51516064, 64395080, 128790160, 257580320]

約数ペア:

[(1, 257580320), (2, 128790160), (4, 64395080), (5, 51516064), (8, 32197540), (10, 25758032), (16, 16098770), (20, 12879016), (29, 8882080), (32, 8049385), (40, 6439508), (43, 5990240), (58, 4441040), (80, 3219754), (86, 2995120), (116, 2220520), (145, 1776416), (160, 1609877), (172, 1497560), (215, 1198048), (232, 1110260), (290, 888208), (344, 748780), (430, 599024), (464, 555130), (580, 444104), (688, 374390), (860, 299512), (928, 277565), (1160, 222052), (1247, 206560), (1291, 199520), (1376, 187195), (1720, 149756), (2320, 111026), (2494, 103280), (2582, 99760), (3440, 74878), (4640, 55513), (4988, 51640), (5164, 49880), (6235, 41312), (6455, 39904), (6880, 37439), (9976, 25820), (10328, 24940), (12470, 20656), (12910, 19952)]