640902960

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1$

素因数の和:352

約数の個数: 240

約数和(自身を含む): 2233380864

約数和(自身を除く): 1592477904

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 43, 45, 48, 60, 72, 80, 86, 90, 120, 127, 129, 144, 163, 172, 180, 215, 240, 254, 258, 326, 344, 360, 381, 387, 430, 489, 508, 516, 635, 645, 652, 688, 720, 762, 774, 815, 860, 978, 1016, 1032, 1143, 1270, 1290, 1304, 1467, 1524, 1548, 1630, 1720, 1905, 1935, 1956, 2032, 2064, 2286, 2445, 2540, 2580, 2608, 2934, 3048, 3096, 3260, 3440, 3810, 3870, 3912, 4572, 4890, 5080, 5160, 5461, 5715, 5868, 6096, 6192, 6520, 7009, 7335, 7620, 7740, 7824, 9144, 9780, 10160, 10320, 10922, 11430, 11736, 13040, 14018, 14670, 15240, 15480, 16383, 18288, 19560, 20701, 21027, 21844, 22860, 23472, 27305, 28036, 29340, 30480, 30960, 32766, 35045, 39120, 41402, 42054, 43688, 45720, 49149, 54610, 56072, 58680, 62103, 63081, 65532, 70090, 81915, 82804, 84108, 87376, 91440, 98298, 103505, 105135, 109220, 112144, 117360, 124206, 126162, 131064, 140180, 163830, 165608, 168216, 186309, 196596, 207010, 210270, 218440, 245745, 248412, 252324, 262128, 280360, 310515, 315405, 327660, 331216, 336432, 372618, 393192, 414020, 420540, 436880, 491490, 496824, 504648, 560720, 621030, 630810, 655320, 745236, 786384, 828040, 841080, 890143, 931545, 982980, 993648, 1009296, 1242060, 1261620, 1310640, 1490472, 1656080, 1682160, 1780286, 1863090, 1965960, 2484120, 2523240, 2670429, 2980944, 3560572, 3726180, 3931920, 4450715, 4968240, 5046480, 5340858, 7121144, 7452360, 8011287, 8901430, 10681716, 13352145, 14242288, 14904720, 16022574, 17802860, 21363432, 26704290, 32045148, 35605720, 40056435, 42726864, 53408580, 64090296, 71211440, 80112870, 106817160, 128180592, 160225740, 213634320, 320451480, 640902960]

約数ペア:

[(1, 640902960), (2, 320451480), (3, 213634320), (4, 160225740), (5, 128180592), (6, 106817160), (8, 80112870), (9, 71211440), (10, 64090296), (12, 53408580), (15, 42726864), (16, 40056435), (18, 35605720), (20, 32045148), (24, 26704290), (30, 21363432), (36, 17802860), (40, 16022574), (43, 14904720), (45, 14242288), (48, 13352145), (60, 10681716), (72, 8901430), (80, 8011287), (86, 7452360), (90, 7121144), (120, 5340858), (127, 5046480), (129, 4968240), (144, 4450715), (163, 3931920), (172, 3726180), (180, 3560572), (215, 2980944), (240, 2670429), (254, 2523240), (258, 2484120), (326, 1965960), (344, 1863090), (360, 1780286), (381, 1682160), (387, 1656080), (430, 1490472), (489, 1310640), (508, 1261620), (516, 1242060), (635, 1009296), (645, 993648), (652, 982980), (688, 931545), (720, 890143), (762, 841080), (774, 828040), (815, 786384), (860, 745236), (978, 655320), (1016, 630810), (1032, 621030), (1143, 560720), (1270, 504648), (1290, 496824), (1304, 491490), (1467, 436880), (1524, 420540), (1548, 414020), (1630, 393192), (1720, 372618), (1905, 336432), (1935, 331216), (1956, 327660), (2032, 315405), (2064, 310515), (2286, 280360), (2445, 262128), (2540, 252324), (2580, 248412), (2608, 245745), (2934, 218440), (3048, 210270), (3096, 207010), (3260, 196596), (3440, 186309), (3810, 168216), (3870, 165608), (3912, 163830), (4572, 140180), (4890, 131064), (5080, 126162), (5160, 124206), (5461, 117360), (5715, 112144), (5868, 109220), (6096, 105135), (6192, 103505), (6520, 98298), (7009, 91440), (7335, 87376), (7620, 84108), (7740, 82804), (7824, 81915), (9144, 70090), (9780, 65532), (10160, 63081), (10320, 62103), (10922, 58680), (11430, 56072), (11736, 54610), (13040, 49149), (14018, 45720), (14670, 43688), (15240, 42054), (15480, 41402), (16383, 39120), (18288, 35045), (19560, 32766), (20701, 30960), (21027, 30480), (21844, 29340), (22860, 28036), (23472, 27305)]