639377280

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{227}}^1$

素因数の和:418

約数の個数: 256

約数和(自身を含む): 2288390400

約数和(自身を除く): 1649013120

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, 90, 96, 108, 120, 128, 135, 144, 160, 163, 180, 192, 216, 227, 240, 270, 288, 320, 326, 360, 384, 432, 454, 480, 489, 540, 576, 640, 652, 681, 720, 815, 864, 908, 960, 978, 1080, 1135, 1152, 1304, 1362, 1440, 1467, 1630, 1728, 1816, 1920, 1956, 2043, 2160, 2270, 2445, 2608, 2724, 2880, 2934, 3260, 3405, 3456, 3632, 3912, 4086, 4320, 4401, 4540, 4890, 5216, 5448, 5760, 5868, 6129, 6520, 6810, 7264, 7335, 7824, 8172, 8640, 8802, 9080, 9780, 10215, 10432, 10896, 11736, 12258, 13040, 13620, 14528, 14670, 15648, 16344, 17280, 17604, 18160, 19560, 20430, 20864, 21792, 22005, 23472, 24516, 26080, 27240, 29056, 29340, 30645, 31296, 32688, 35208, 36320, 37001, 39120, 40860, 43584, 44010, 46944, 49032, 52160, 54480, 58680, 61290, 62592, 65376, 70416, 72640, 74002, 78240, 81720, 87168, 88020, 93888, 98064, 104320, 108960, 111003, 117360, 122580, 130752, 140832, 145280, 148004, 156480, 163440, 176040, 185005, 187776, 196128, 217920, 222006, 234720, 245160, 261504, 281664, 296008, 312960, 326880, 333009, 352080, 370010, 392256, 435840, 444012, 469440, 490320, 555015, 563328, 592016, 653760, 666018, 704160, 740020, 784512, 888024, 938880, 980640, 999027, 1110030, 1184032, 1307520, 1332036, 1408320, 1480040, 1665045, 1776048, 1961280, 1998054, 2220060, 2368064, 2664072, 2816640, 2960080, 3330090, 3552096, 3922560, 3996108, 4440120, 4736128, 4995135, 5328144, 5920160, 6660180, 7104192, 7992216, 8880240, 9990270, 10656288, 11840320, 13320360, 14208384, 15984432, 17760480, 19980540, 21312576, 23680640, 26640720, 31968864, 35520960, 39961080, 42625152, 53281440, 63937728, 71041920, 79922160, 106562880, 127875456, 159844320, 213125760, 319688640, 639377280]

約数ペア:

[(1, 639377280), (2, 319688640), (3, 213125760), (4, 159844320), (5, 127875456), (6, 106562880), (8, 79922160), (9, 71041920), (10, 63937728), (12, 53281440), (15, 42625152), (16, 39961080), (18, 35520960), (20, 31968864), (24, 26640720), (27, 23680640), (30, 21312576), (32, 19980540), (36, 17760480), (40, 15984432), (45, 14208384), (48, 13320360), (54, 11840320), (60, 10656288), (64, 9990270), (72, 8880240), (80, 7992216), (90, 7104192), (96, 6660180), (108, 5920160), (120, 5328144), (128, 4995135), (135, 4736128), (144, 4440120), (160, 3996108), (163, 3922560), (180, 3552096), (192, 3330090), (216, 2960080), (227, 2816640), (240, 2664072), (270, 2368064), (288, 2220060), (320, 1998054), (326, 1961280), (360, 1776048), (384, 1665045), (432, 1480040), (454, 1408320), (480, 1332036), (489, 1307520), (540, 1184032), (576, 1110030), (640, 999027), (652, 980640), (681, 938880), (720, 888024), (815, 784512), (864, 740020), (908, 704160), (960, 666018), (978, 653760), (1080, 592016), (1135, 563328), (1152, 555015), (1304, 490320), (1362, 469440), (1440, 444012), (1467, 435840), (1630, 392256), (1728, 370010), (1816, 352080), (1920, 333009), (1956, 326880), (2043, 312960), (2160, 296008), (2270, 281664), (2445, 261504), (2608, 245160), (2724, 234720), (2880, 222006), (2934, 217920), (3260, 196128), (3405, 187776), (3456, 185005), (3632, 176040), (3912, 163440), (4086, 156480), (4320, 148004), (4401, 145280), (4540, 140832), (4890, 130752), (5216, 122580), (5448, 117360), (5760, 111003), (5868, 108960), (6129, 104320), (6520, 98064), (6810, 93888), (7264, 88020), (7335, 87168), (7824, 81720), (8172, 78240), (8640, 74002), (8802, 72640), (9080, 70416), (9780, 65376), (10215, 62592), (10432, 61290), (10896, 58680), (11736, 54480), (12258, 52160), (13040, 49032), (13620, 46944), (14528, 44010), (14670, 43584), (15648, 40860), (16344, 39120), (17280, 37001), (17604, 36320), (18160, 35208), (19560, 32688), (20430, 31296), (20864, 30645), (21792, 29340), (22005, 29056), (23472, 27240), (24516, 26080)]