640723680

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{229}}^1$

素因数の和:346

約数の個数: 288

約数和(自身を含む): 2305648800

約数和(自身を除く): 1664925120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 29, 30, 32, 36, 40, 45, 48, 58, 60, 67, 72, 80, 87, 90, 96, 116, 120, 134, 144, 145, 160, 174, 180, 201, 229, 232, 240, 261, 268, 288, 290, 335, 348, 360, 402, 435, 458, 464, 480, 522, 536, 580, 603, 670, 687, 696, 720, 804, 870, 916, 928, 1005, 1044, 1072, 1145, 1160, 1206, 1305, 1340, 1374, 1392, 1440, 1608, 1740, 1832, 1943, 2010, 2061, 2088, 2144, 2290, 2320, 2412, 2610, 2680, 2748, 2784, 3015, 3216, 3435, 3480, 3664, 3886, 4020, 4122, 4176, 4580, 4640, 4824, 5220, 5360, 5496, 5829, 6030, 6432, 6641, 6870, 6960, 7328, 7772, 8040, 8244, 8352, 9160, 9648, 9715, 10305, 10440, 10720, 10992, 11658, 12060, 13282, 13740, 13920, 15343, 15544, 16080, 16488, 17487, 18320, 19296, 19430, 19923, 20610, 20880, 21984, 23316, 24120, 26564, 27480, 29145, 30686, 31088, 32160, 32976, 33205, 34974, 36640, 38860, 39846, 41220, 41760, 46029, 46632, 48240, 53128, 54960, 58290, 59769, 61372, 62176, 65952, 66410, 69948, 76715, 77720, 79692, 82440, 87435, 92058, 93264, 96480, 99615, 106256, 109920, 116580, 119538, 122744, 132820, 138087, 139896, 153430, 155440, 159384, 164880, 174870, 184116, 186528, 199230, 212512, 230145, 233160, 239076, 245488, 265640, 276174, 279792, 298845, 306860, 310880, 318768, 329760, 349740, 368232, 398460, 444947, 460290, 466320, 478152, 490976, 531280, 552348, 559584, 597690, 613720, 637536, 690435, 699480, 736464, 796920, 889894, 920580, 932640, 956304, 1062560, 1104696, 1195380, 1227440, 1334841, 1380870, 1398960, 1472928, 1593840, 1779788, 1841160, 1912608, 2209392, 2224735, 2390760, 2454880, 2669682, 2761740, 2797920, 3187680, 3559576, 3682320, 4004523, 4418784, 4449470, 4781520, 5339364, 5523480, 6674205, 7119152, 7364640, 8009046, 8898940, 9563040, 10678728, 11046960, 13348410, 14238304, 16018092, 17797880, 20022615, 21357456, 22093920, 26696820, 32036184, 35595760, 40045230, 42714912, 53393640, 64072368, 71191520, 80090460, 106787280, 128144736, 160180920, 213574560, 320361840, 640723680]

約数ペア:

[(1, 640723680), (2, 320361840), (3, 213574560), (4, 160180920), (5, 128144736), (6, 106787280), (8, 80090460), (9, 71191520), (10, 64072368), (12, 53393640), (15, 42714912), (16, 40045230), (18, 35595760), (20, 32036184), (24, 26696820), (29, 22093920), (30, 21357456), (32, 20022615), (36, 17797880), (40, 16018092), (45, 14238304), (48, 13348410), (58, 11046960), (60, 10678728), (67, 9563040), (72, 8898940), (80, 8009046), (87, 7364640), (90, 7119152), (96, 6674205), (116, 5523480), (120, 5339364), (134, 4781520), (144, 4449470), (145, 4418784), (160, 4004523), (174, 3682320), (180, 3559576), (201, 3187680), (229, 2797920), (232, 2761740), (240, 2669682), (261, 2454880), (268, 2390760), (288, 2224735), (290, 2209392), (335, 1912608), (348, 1841160), (360, 1779788), (402, 1593840), (435, 1472928), (458, 1398960), (464, 1380870), (480, 1334841), (522, 1227440), (536, 1195380), (580, 1104696), (603, 1062560), (670, 956304), (687, 932640), (696, 920580), (720, 889894), (804, 796920), (870, 736464), (916, 699480), (928, 690435), (1005, 637536), (1044, 613720), (1072, 597690), (1145, 559584), (1160, 552348), (1206, 531280), (1305, 490976), (1340, 478152), (1374, 466320), (1392, 460290), (1440, 444947), (1608, 398460), (1740, 368232), (1832, 349740), (1943, 329760), (2010, 318768), (2061, 310880), (2088, 306860), (2144, 298845), (2290, 279792), (2320, 276174), (2412, 265640), (2610, 245488), (2680, 239076), (2748, 233160), (2784, 230145), (3015, 212512), (3216, 199230), (3435, 186528), (3480, 184116), (3664, 174870), (3886, 164880), (4020, 159384), (4122, 155440), (4176, 153430), (4580, 139896), (4640, 138087), (4824, 132820), (5220, 122744), (5360, 119538), (5496, 116580), (5829, 109920), (6030, 106256), (6432, 99615), (6641, 96480), (6870, 93264), (6960, 92058), (7328, 87435), (7772, 82440), (8040, 79692), (8244, 77720), (8352, 76715), (9160, 69948), (9648, 66410), (9715, 65952), (10305, 62176), (10440, 61372), (10720, 59769), (10992, 58290), (11658, 54960), (12060, 53128), (13282, 48240), (13740, 46632), (13920, 46029), (15343, 41760), (15544, 41220), (16080, 39846), (16488, 38860), (17487, 36640), (18320, 34974), (19296, 33205), (19430, 32976), (19923, 32160), (20610, 31088), (20880, 30686), (21984, 29145), (23316, 27480), (24120, 26564)]