213217920

素因数分解:

$2^7\times 3^6\times 5^1\times {\mathrm{457}}^1$

素因数の和:494

約数の個数: 224

約数和(自身を含む): 765908820

約数和(自身を除く): 552690900

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 81, 90, 96, 108, 120, 128, 135, 144, 160, 162, 180, 192, 216, 240, 243, 270, 288, 320, 324, 360, 384, 405, 432, 457, 480, 486, 540, 576, 640, 648, 720, 729, 810, 864, 914, 960, 972, 1080, 1152, 1215, 1296, 1371, 1440, 1458, 1620, 1728, 1828, 1920, 1944, 2160, 2285, 2430, 2592, 2742, 2880, 2916, 3240, 3456, 3645, 3656, 3888, 4113, 4320, 4570, 4860, 5184, 5484, 5760, 5832, 6480, 6855, 7290, 7312, 7776, 8226, 8640, 9140, 9720, 10368, 10968, 11664, 12339, 12960, 13710, 14580, 14624, 15552, 16452, 17280, 18280, 19440, 20565, 21936, 23328, 24678, 25920, 27420, 29160, 29248, 31104, 32904, 36560, 37017, 38880, 41130, 43872, 46656, 49356, 51840, 54840, 58320, 58496, 61695, 65808, 73120, 74034, 77760, 82260, 87744, 93312, 98712, 109680, 111051, 116640, 123390, 131616, 146240, 148068, 155520, 164520, 175488, 185085, 197424, 219360, 222102, 233280, 246780, 263232, 292480, 296136, 329040, 333153, 370170, 394848, 438720, 444204, 466560, 493560, 526464, 555255, 592272, 658080, 666306, 740340, 789696, 877440, 888408, 987120, 1110510, 1184544, 1316160, 1332612, 1480680, 1579392, 1665765, 1776816, 1974240, 2221020, 2369088, 2632320, 2665224, 2961360, 3331530, 3553632, 3948480, 4442040, 4738176, 5330448, 5922720, 6663060, 7107264, 7896960, 8884080, 10660896, 11845440, 13326120, 14214528, 17768160, 21321792, 23690880, 26652240, 35536320, 42643584, 53304480, 71072640, 106608960, 213217920]

約数ペア:

[(1, 213217920), (2, 106608960), (3, 71072640), (4, 53304480), (5, 42643584), (6, 35536320), (8, 26652240), (9, 23690880), (10, 21321792), (12, 17768160), (15, 14214528), (16, 13326120), (18, 11845440), (20, 10660896), (24, 8884080), (27, 7896960), (30, 7107264), (32, 6663060), (36, 5922720), (40, 5330448), (45, 4738176), (48, 4442040), (54, 3948480), (60, 3553632), (64, 3331530), (72, 2961360), (80, 2665224), (81, 2632320), (90, 2369088), (96, 2221020), (108, 1974240), (120, 1776816), (128, 1665765), (135, 1579392), (144, 1480680), (160, 1332612), (162, 1316160), (180, 1184544), (192, 1110510), (216, 987120), (240, 888408), (243, 877440), (270, 789696), (288, 740340), (320, 666306), (324, 658080), (360, 592272), (384, 555255), (405, 526464), (432, 493560), (457, 466560), (480, 444204), (486, 438720), (540, 394848), (576, 370170), (640, 333153), (648, 329040), (720, 296136), (729, 292480), (810, 263232), (864, 246780), (914, 233280), (960, 222102), (972, 219360), (1080, 197424), (1152, 185085), (1215, 175488), (1296, 164520), (1371, 155520), (1440, 148068), (1458, 146240), (1620, 131616), (1728, 123390), (1828, 116640), (1920, 111051), (1944, 109680), (2160, 98712), (2285, 93312), (2430, 87744), (2592, 82260), (2742, 77760), (2880, 74034), (2916, 73120), (3240, 65808), (3456, 61695), (3645, 58496), (3656, 58320), (3888, 54840), (4113, 51840), (4320, 49356), (4570, 46656), (4860, 43872), (5184, 41130), (5484, 38880), (5760, 37017), (5832, 36560), (6480, 32904), (6855, 31104), (7290, 29248), (7312, 29160), (7776, 27420), (8226, 25920), (8640, 24678), (9140, 23328), (9720, 21936), (10368, 20565), (10968, 19440), (11664, 18280), (12339, 17280), (12960, 16452), (13710, 15552), (14580, 14624)]