639653760

素因数分解:

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

素因数の和:497

約数の個数: 256

約数和(自身を含む): 2298427200

約数和(自身を除く): 1658773440

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, 2187, 2285, 2430, 2592, 2742, 2880, 2916, 3240, 3456, 3645, 3656, 3888, 4113, 4320, 4374, 4570, 4860, 5184, 5484, 5760, 5832, 6480, 6855, 7290, 7312, 7776, 8226, 8640, 8748, 9140, 9720, 10368, 10935, 10968, 11664, 12339, 12960, 13710, 14580, 14624, 15552, 16452, 17280, 17496, 18280, 19440, 20565, 21870, 21936, 23328, 24678, 25920, 27420, 29160, 29248, 31104, 32904, 34992, 36560, 37017, 38880, 41130, 43740, 43872, 46656, 49356, 51840, 54840, 58320, 58496, 61695, 65808, 69984, 73120, 74034, 77760, 82260, 87480, 87744, 93312, 98712, 109680, 111051, 116640, 123390, 131616, 139968, 146240, 148068, 155520, 164520, 174960, 175488, 185085, 197424, 219360, 222102, 233280, 246780, 263232, 279936, 292480, 296136, 329040, 333153, 349920, 370170, 394848, 438720, 444204, 466560, 493560, 526464, 555255, 592272, 658080, 666306, 699840, 740340, 789696, 877440, 888408, 987120, 999459, 1110510, 1184544, 1316160, 1332612, 1399680, 1480680, 1579392, 1665765, 1776816, 1974240, 1998918, 2221020, 2369088, 2632320, 2665224, 2961360, 3331530, 3553632, 3948480, 3997836, 4442040, 4738176, 4997295, 5330448, 5922720, 6663060, 7107264, 7896960, 7995672, 8884080, 9994590, 10660896, 11845440, 13326120, 14214528, 15991344, 17768160, 19989180, 21321792, 23690880, 26652240, 31982688, 35536320, 39978360, 42643584, 53304480, 63965376, 71072640, 79956720, 106608960, 127930752, 159913440, 213217920, 319826880, 639653760]

約数ペア:

[(1, 639653760), (2, 319826880), (3, 213217920), (4, 159913440), (5, 127930752), (6, 106608960), (8, 79956720), (9, 71072640), (10, 63965376), (12, 53304480), (15, 42643584), (16, 39978360), (18, 35536320), (20, 31982688), (24, 26652240), (27, 23690880), (30, 21321792), (32, 19989180), (36, 17768160), (40, 15991344), (45, 14214528), (48, 13326120), (54, 11845440), (60, 10660896), (64, 9994590), (72, 8884080), (80, 7995672), (81, 7896960), (90, 7107264), (96, 6663060), (108, 5922720), (120, 5330448), (128, 4997295), (135, 4738176), (144, 4442040), (160, 3997836), (162, 3948480), (180, 3553632), (192, 3331530), (216, 2961360), (240, 2665224), (243, 2632320), (270, 2369088), (288, 2221020), (320, 1998918), (324, 1974240), (360, 1776816), (384, 1665765), (405, 1579392), (432, 1480680), (457, 1399680), (480, 1332612), (486, 1316160), (540, 1184544), (576, 1110510), (640, 999459), (648, 987120), (720, 888408), (729, 877440), (810, 789696), (864, 740340), (914, 699840), (960, 666306), (972, 658080), (1080, 592272), (1152, 555255), (1215, 526464), (1296, 493560), (1371, 466560), (1440, 444204), (1458, 438720), (1620, 394848), (1728, 370170), (1828, 349920), (1920, 333153), (1944, 329040), (2160, 296136), (2187, 292480), (2285, 279936), (2430, 263232), (2592, 246780), (2742, 233280), (2880, 222102), (2916, 219360), (3240, 197424), (3456, 185085), (3645, 175488), (3656, 174960), (3888, 164520), (4113, 155520), (4320, 148068), (4374, 146240), (4570, 139968), (4860, 131616), (5184, 123390), (5484, 116640), (5760, 111051), (5832, 109680), (6480, 98712), (6855, 93312), (7290, 87744), (7312, 87480), (7776, 82260), (8226, 77760), (8640, 74034), (8748, 73120), (9140, 69984), (9720, 65808), (10368, 61695), (10935, 58496), (10968, 58320), (11664, 54840), (12339, 51840), (12960, 49356), (13710, 46656), (14580, 43872), (14624, 43740), (15552, 41130), (16452, 38880), (17280, 37017), (17496, 36560), (18280, 34992), (19440, 32904), (20565, 31104), (21870, 29248), (21936, 29160), (23328, 27420), (24678, 25920)]