640690560

素因数分解:

$2^7\times 3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{727}}^1$

素因数の和:775

約数の個数: 320

約数和(自身を含む): 2425943520

約数和(自身を除く): 1785252960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 27, 30, 32, 34, 36, 40, 45, 48, 51, 54, 60, 64, 68, 72, 80, 81, 85, 90, 96, 102, 108, 120, 128, 135, 136, 144, 153, 160, 162, 170, 180, 192, 204, 216, 240, 255, 270, 272, 288, 306, 320, 324, 340, 360, 384, 405, 408, 432, 459, 480, 510, 540, 544, 576, 612, 640, 648, 680, 720, 727, 765, 810, 816, 864, 918, 960, 1020, 1080, 1088, 1152, 1224, 1296, 1360, 1377, 1440, 1454, 1530, 1620, 1632, 1728, 1836, 1920, 2040, 2160, 2176, 2181, 2295, 2448, 2592, 2720, 2754, 2880, 2908, 3060, 3240, 3264, 3456, 3635, 3672, 4080, 4320, 4362, 4590, 4896, 5184, 5440, 5508, 5760, 5816, 6120, 6480, 6528, 6543, 6885, 7270, 7344, 8160, 8640, 8724, 9180, 9792, 10368, 10880, 10905, 11016, 11632, 12240, 12359, 12960, 13086, 13770, 14540, 14688, 16320, 17280, 17448, 18360, 19584, 19629, 21810, 22032, 23264, 24480, 24718, 25920, 26172, 27540, 29080, 29376, 32640, 32715, 34896, 36720, 37077, 39258, 43620, 44064, 46528, 48960, 49436, 51840, 52344, 55080, 58160, 58752, 58887, 61795, 65430, 69792, 73440, 74154, 78516, 87240, 88128, 93056, 97920, 98145, 98872, 104688, 110160, 111231, 116320, 117774, 123590, 130860, 139584, 146880, 148308, 157032, 174480, 176256, 185385, 196290, 197744, 209376, 220320, 222462, 232640, 235548, 247180, 261720, 279168, 293760, 294435, 296616, 314064, 333693, 348960, 370770, 392580, 395488, 418752, 440640, 444924, 465280, 471096, 494360, 523440, 556155, 588870, 593232, 628128, 667386, 697920, 741540, 785160, 790976, 837504, 881280, 889848, 942192, 988720, 1001079, 1046880, 1112310, 1177740, 1186464, 1256256, 1334772, 1395840, 1483080, 1570320, 1581952, 1668465, 1779696, 1884384, 1977440, 2002158, 2093760, 2224620, 2355480, 2372928, 2512512, 2669544, 2966160, 3140640, 3336930, 3559392, 3768768, 3954880, 4004316, 4187520, 4449240, 4710960, 4745856, 5005395, 5339088, 5932320, 6281280, 6673860, 7118784, 7537536, 7909760, 8008632, 8898480, 9421920, 10010790, 10678176, 11864640, 12562560, 13347720, 14237568, 16017264, 17796960, 18843840, 20021580, 21356352, 23729280, 26695440, 32034528, 35593920, 37687680, 40043160, 42712704, 53390880, 64069056, 71187840, 80086320, 106781760, 128138112, 160172640, 213563520, 320345280, 640690560]

約数ペア:

[(1, 640690560), (2, 320345280), (3, 213563520), (4, 160172640), (5, 128138112), (6, 106781760), (8, 80086320), (9, 71187840), (10, 64069056), (12, 53390880), (15, 42712704), (16, 40043160), (17, 37687680), (18, 35593920), (20, 32034528), (24, 26695440), (27, 23729280), (30, 21356352), (32, 20021580), (34, 18843840), (36, 17796960), (40, 16017264), (45, 14237568), (48, 13347720), (51, 12562560), (54, 11864640), (60, 10678176), (64, 10010790), (68, 9421920), (72, 8898480), (80, 8008632), (81, 7909760), (85, 7537536), (90, 7118784), (96, 6673860), (102, 6281280), (108, 5932320), (120, 5339088), (128, 5005395), (135, 4745856), (136, 4710960), (144, 4449240), (153, 4187520), (160, 4004316), (162, 3954880), (170, 3768768), (180, 3559392), (192, 3336930), (204, 3140640), (216, 2966160), (240, 2669544), (255, 2512512), (270, 2372928), (272, 2355480), (288, 2224620), (306, 2093760), (320, 2002158), (324, 1977440), (340, 1884384), (360, 1779696), (384, 1668465), (405, 1581952), (408, 1570320), (432, 1483080), (459, 1395840), (480, 1334772), (510, 1256256), (540, 1186464), (544, 1177740), (576, 1112310), (612, 1046880), (640, 1001079), (648, 988720), (680, 942192), (720, 889848), (727, 881280), (765, 837504), (810, 790976), (816, 785160), (864, 741540), (918, 697920), (960, 667386), (1020, 628128), (1080, 593232), (1088, 588870), (1152, 556155), (1224, 523440), (1296, 494360), (1360, 471096), (1377, 465280), (1440, 444924), (1454, 440640), (1530, 418752), (1620, 395488), (1632, 392580), (1728, 370770), (1836, 348960), (1920, 333693), (2040, 314064), (2160, 296616), (2176, 294435), (2181, 293760), (2295, 279168), (2448, 261720), (2592, 247180), (2720, 235548), (2754, 232640), (2880, 222462), (2908, 220320), (3060, 209376), (3240, 197744), (3264, 196290), (3456, 185385), (3635, 176256), (3672, 174480), (4080, 157032), (4320, 148308), (4362, 146880), (4590, 139584), (4896, 130860), (5184, 123590), (5440, 117774), (5508, 116320), (5760, 111231), (5816, 110160), (6120, 104688), (6480, 98872), (6528, 98145), (6543, 97920), (6885, 93056), (7270, 88128), (7344, 87240), (8160, 78516), (8640, 74154), (8724, 73440), (9180, 69792), (9792, 65430), (10368, 61795), (10880, 58887), (10905, 58752), (11016, 58160), (11632, 55080), (12240, 52344), (12359, 51840), (12960, 49436), (13086, 48960), (13770, 46528), (14540, 44064), (14688, 43620), (16320, 39258), (17280, 37077), (17448, 36720), (18360, 34896), (19584, 32715), (19629, 32640), (21810, 29376), (22032, 29080), (23264, 27540), (24480, 26172), (24718, 25920)]