639404640

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{277}}^1$

素因数の和:534

約数の個数: 288

約数和(自身を含む): 2513609280

約数和(自身を除く): 1874204640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 229, 240, 252, 277, 280, 288, 315, 336, 360, 420, 458, 480, 504, 554, 560, 630, 672, 687, 720, 831, 840, 916, 1008, 1108, 1120, 1145, 1260, 1374, 1385, 1440, 1603, 1662, 1680, 1832, 1939, 2016, 2061, 2216, 2290, 2493, 2520, 2748, 2770, 3206, 3324, 3360, 3435, 3664, 3878, 4122, 4155, 4432, 4580, 4809, 4986, 5040, 5496, 5540, 5817, 6412, 6648, 6870, 7328, 7756, 8015, 8244, 8310, 8864, 9160, 9618, 9695, 9972, 10080, 10305, 10992, 11080, 11634, 12465, 12824, 13296, 13740, 14427, 15512, 16030, 16488, 16620, 17451, 18320, 19236, 19390, 19944, 20610, 21984, 22160, 23268, 24045, 24930, 25648, 26592, 27480, 28854, 29085, 31024, 32060, 32976, 33240, 34902, 36640, 38472, 38780, 39888, 41220, 44320, 46536, 48090, 49860, 51296, 54960, 57708, 58170, 62048, 63433, 64120, 65952, 66480, 69804, 72135, 76944, 77560, 79776, 82440, 87255, 93072, 96180, 99720, 109920, 115416, 116340, 126866, 128240, 132960, 139608, 144270, 153888, 155120, 164880, 174510, 186144, 190299, 192360, 199440, 230832, 232680, 253732, 256480, 279216, 288540, 310240, 317165, 329760, 349020, 380598, 384720, 398880, 444031, 461664, 465360, 507464, 558432, 570897, 577080, 634330, 698040, 761196, 769440, 888062, 930720, 951495, 1014928, 1141794, 1154160, 1268660, 1332093, 1396080, 1522392, 1776124, 1902990, 2029856, 2220155, 2283588, 2308320, 2537320, 2664186, 2792160, 2854485, 3044784, 3552248, 3805980, 3996279, 4440310, 4567176, 5074640, 5328372, 5708970, 6089568, 6660465, 7104496, 7611960, 7992558, 8880620, 9134352, 10149280, 10656744, 11417940, 13320930, 14208992, 15223920, 15985116, 17761240, 18268704, 19981395, 21313488, 22835880, 26641860, 30447840, 31970232, 35522480, 39962790, 42626976, 45671760, 53283720, 63940464, 71044960, 79925580, 91343520, 106567440, 127880928, 159851160, 213134880, 319702320, 639404640]

約数ペア:

[(1, 639404640), (2, 319702320), (3, 213134880), (4, 159851160), (5, 127880928), (6, 106567440), (7, 91343520), (8, 79925580), (9, 71044960), (10, 63940464), (12, 53283720), (14, 45671760), (15, 42626976), (16, 39962790), (18, 35522480), (20, 31970232), (21, 30447840), (24, 26641860), (28, 22835880), (30, 21313488), (32, 19981395), (35, 18268704), (36, 17761240), (40, 15985116), (42, 15223920), (45, 14208992), (48, 13320930), (56, 11417940), (60, 10656744), (63, 10149280), (70, 9134352), (72, 8880620), (80, 7992558), (84, 7611960), (90, 7104496), (96, 6660465), (105, 6089568), (112, 5708970), (120, 5328372), (126, 5074640), (140, 4567176), (144, 4440310), (160, 3996279), (168, 3805980), (180, 3552248), (210, 3044784), (224, 2854485), (229, 2792160), (240, 2664186), (252, 2537320), (277, 2308320), (280, 2283588), (288, 2220155), (315, 2029856), (336, 1902990), (360, 1776124), (420, 1522392), (458, 1396080), (480, 1332093), (504, 1268660), (554, 1154160), (560, 1141794), (630, 1014928), (672, 951495), (687, 930720), (720, 888062), (831, 769440), (840, 761196), (916, 698040), (1008, 634330), (1108, 577080), (1120, 570897), (1145, 558432), (1260, 507464), (1374, 465360), (1385, 461664), (1440, 444031), (1603, 398880), (1662, 384720), (1680, 380598), (1832, 349020), (1939, 329760), (2016, 317165), (2061, 310240), (2216, 288540), (2290, 279216), (2493, 256480), (2520, 253732), (2748, 232680), (2770, 230832), (3206, 199440), (3324, 192360), (3360, 190299), (3435, 186144), (3664, 174510), (3878, 164880), (4122, 155120), (4155, 153888), (4432, 144270), (4580, 139608), (4809, 132960), (4986, 128240), (5040, 126866), (5496, 116340), (5540, 115416), (5817, 109920), (6412, 99720), (6648, 96180), (6870, 93072), (7328, 87255), (7756, 82440), (8015, 79776), (8244, 77560), (8310, 76944), (8864, 72135), (9160, 69804), (9618, 66480), (9695, 65952), (9972, 64120), (10080, 63433), (10305, 62048), (10992, 58170), (11080, 57708), (11634, 54960), (12465, 51296), (12824, 49860), (13296, 48090), (13740, 46536), (14427, 44320), (15512, 41220), (16030, 39888), (16488, 38780), (16620, 38472), (17451, 36640), (18320, 34902), (19236, 33240), (19390, 32976), (19944, 32060), (20610, 31024), (21984, 29085), (22160, 28854), (23268, 27480), (24045, 26592), (24930, 25648)]