639634320

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2531}}^1$

素因数の和:2572

約数の個数: 240

約数和(自身を含む): 2399971392

約数和(自身を除く): 1760337072

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 81, 90, 104, 108, 117, 120, 130, 135, 144, 156, 162, 180, 195, 208, 216, 234, 240, 243, 260, 270, 312, 324, 351, 360, 390, 405, 432, 468, 486, 520, 540, 585, 624, 648, 702, 720, 780, 810, 936, 972, 1040, 1053, 1080, 1170, 1215, 1296, 1404, 1560, 1620, 1755, 1872, 1944, 2106, 2160, 2340, 2430, 2531, 2808, 3120, 3159, 3240, 3510, 3888, 4212, 4680, 4860, 5062, 5265, 5616, 6318, 6480, 7020, 7593, 8424, 9360, 9720, 10124, 10530, 12636, 12655, 14040, 15186, 15795, 16848, 19440, 20248, 21060, 22779, 25272, 25310, 28080, 30372, 31590, 32903, 37965, 40496, 42120, 45558, 50544, 50620, 60744, 63180, 65806, 68337, 75930, 84240, 91116, 98709, 101240, 113895, 121488, 126360, 131612, 136674, 151860, 164515, 182232, 197418, 202480, 205011, 227790, 252720, 263224, 273348, 296127, 303720, 329030, 341685, 364464, 394836, 410022, 455580, 493545, 526448, 546696, 592254, 607440, 615033, 658060, 683370, 789672, 820044, 888381, 911160, 987090, 1025055, 1093392, 1184508, 1230066, 1316120, 1366740, 1480635, 1579344, 1640088, 1776762, 1822320, 1974180, 2050110, 2369016, 2460132, 2632240, 2665143, 2733480, 2961270, 3075165, 3280176, 3553524, 3948360, 4100220, 4441905, 4738032, 4920264, 5330286, 5466960, 5922540, 6150330, 7107048, 7896720, 7995429, 8200440, 8883810, 9840528, 10660572, 11845080, 12300660, 13325715, 14214096, 15990858, 16400880, 17767620, 21321144, 23690160, 24601320, 26651430, 31981716, 35535240, 39977145, 42642288, 49202640, 53302860, 63963432, 71070480, 79954290, 106605720, 127926864, 159908580, 213211440, 319817160, 639634320]

約数ペア:

[(1, 639634320), (2, 319817160), (3, 213211440), (4, 159908580), (5, 127926864), (6, 106605720), (8, 79954290), (9, 71070480), (10, 63963432), (12, 53302860), (13, 49202640), (15, 42642288), (16, 39977145), (18, 35535240), (20, 31981716), (24, 26651430), (26, 24601320), (27, 23690160), (30, 21321144), (36, 17767620), (39, 16400880), (40, 15990858), (45, 14214096), (48, 13325715), (52, 12300660), (54, 11845080), (60, 10660572), (65, 9840528), (72, 8883810), (78, 8200440), (80, 7995429), (81, 7896720), (90, 7107048), (104, 6150330), (108, 5922540), (117, 5466960), (120, 5330286), (130, 4920264), (135, 4738032), (144, 4441905), (156, 4100220), (162, 3948360), (180, 3553524), (195, 3280176), (208, 3075165), (216, 2961270), (234, 2733480), (240, 2665143), (243, 2632240), (260, 2460132), (270, 2369016), (312, 2050110), (324, 1974180), (351, 1822320), (360, 1776762), (390, 1640088), (405, 1579344), (432, 1480635), (468, 1366740), (486, 1316120), (520, 1230066), (540, 1184508), (585, 1093392), (624, 1025055), (648, 987090), (702, 911160), (720, 888381), (780, 820044), (810, 789672), (936, 683370), (972, 658060), (1040, 615033), (1053, 607440), (1080, 592254), (1170, 546696), (1215, 526448), (1296, 493545), (1404, 455580), (1560, 410022), (1620, 394836), (1755, 364464), (1872, 341685), (1944, 329030), (2106, 303720), (2160, 296127), (2340, 273348), (2430, 263224), (2531, 252720), (2808, 227790), (3120, 205011), (3159, 202480), (3240, 197418), (3510, 182232), (3888, 164515), (4212, 151860), (4680, 136674), (4860, 131612), (5062, 126360), (5265, 121488), (5616, 113895), (6318, 101240), (6480, 98709), (7020, 91116), (7593, 84240), (8424, 75930), (9360, 68337), (9720, 65806), (10124, 63180), (10530, 60744), (12636, 50620), (12655, 50544), (14040, 45558), (15186, 42120), (15795, 40496), (16848, 37965), (19440, 32903), (20248, 31590), (21060, 30372), (22779, 28080), (25272, 25310)]