256424960

素因数分解:

$2^{10}\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:222

約数の個数: 176

約数和(自身を含む): 698600160

約数和(自身を除く): 442175200

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 32, 40, 44, 55, 58, 64, 80, 88, 110, 116, 128, 145, 157, 160, 176, 220, 232, 256, 290, 314, 319, 320, 352, 440, 464, 512, 580, 628, 638, 640, 704, 785, 880, 928, 1024, 1160, 1256, 1276, 1280, 1408, 1570, 1595, 1727, 1760, 1856, 2320, 2512, 2552, 2560, 2816, 3140, 3190, 3454, 3520, 3712, 4553, 4640, 5024, 5104, 5120, 5632, 6280, 6380, 6908, 7040, 7424, 8635, 9106, 9280, 10048, 10208, 11264, 12560, 12760, 13816, 14080, 14848, 17270, 18212, 18560, 20096, 20416, 22765, 25120, 25520, 27632, 28160, 29696, 34540, 36424, 37120, 40192, 40832, 45530, 50083, 50240, 51040, 55264, 56320, 69080, 72848, 74240, 80384, 81664, 91060, 100166, 100480, 102080, 110528, 138160, 145696, 148480, 160768, 163328, 182120, 200332, 200960, 204160, 221056, 250415, 276320, 291392, 326656, 364240, 400664, 401920, 408320, 442112, 500830, 552640, 582784, 728480, 801328, 803840, 816640, 884224, 1001660, 1105280, 1165568, 1456960, 1602656, 1633280, 1768448, 2003320, 2210560, 2331136, 2913920, 3205312, 4006640, 4421120, 4662272, 5827840, 6410624, 8013280, 8842240, 11655680, 12821248, 16026560, 23311360, 25642496, 32053120, 51284992, 64106240, 128212480, 256424960]

約数ペア:

[(1, 256424960), (2, 128212480), (4, 64106240), (5, 51284992), (8, 32053120), (10, 25642496), (11, 23311360), (16, 16026560), (20, 12821248), (22, 11655680), (29, 8842240), (32, 8013280), (40, 6410624), (44, 5827840), (55, 4662272), (58, 4421120), (64, 4006640), (80, 3205312), (88, 2913920), (110, 2331136), (116, 2210560), (128, 2003320), (145, 1768448), (157, 1633280), (160, 1602656), (176, 1456960), (220, 1165568), (232, 1105280), (256, 1001660), (290, 884224), (314, 816640), (319, 803840), (320, 801328), (352, 728480), (440, 582784), (464, 552640), (512, 500830), (580, 442112), (628, 408320), (638, 401920), (640, 400664), (704, 364240), (785, 326656), (880, 291392), (928, 276320), (1024, 250415), (1160, 221056), (1256, 204160), (1276, 200960), (1280, 200332), (1408, 182120), (1570, 163328), (1595, 160768), (1727, 148480), (1760, 145696), (1856, 138160), (2320, 110528), (2512, 102080), (2552, 100480), (2560, 100166), (2816, 91060), (3140, 81664), (3190, 80384), (3454, 74240), (3520, 72848), (3712, 69080), (4553, 56320), (4640, 55264), (5024, 51040), (5104, 50240), (5120, 50083), (5632, 45530), (6280, 40832), (6380, 40192), (6908, 37120), (7040, 36424), (7424, 34540), (8635, 29696), (9106, 28160), (9280, 27632), (10048, 25520), (10208, 25120), (11264, 22765), (12560, 20416), (12760, 20096), (13816, 18560), (14080, 18212), (14848, 17270)]