256005720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{709}}^1$

素因数の和:802

約数の個数: 192

約数和(自身を含む): 897156000

約数和(自身を除く): 641150280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 17, 18, 20, 24, 30, 34, 36, 40, 45, 51, 59, 60, 68, 72, 85, 90, 102, 118, 120, 136, 153, 170, 177, 180, 204, 236, 255, 295, 306, 340, 354, 360, 408, 472, 510, 531, 590, 612, 680, 708, 709, 765, 885, 1003, 1020, 1062, 1180, 1224, 1416, 1418, 1530, 1770, 2006, 2040, 2124, 2127, 2360, 2655, 2836, 3009, 3060, 3540, 3545, 4012, 4248, 4254, 5015, 5310, 5672, 6018, 6120, 6381, 7080, 7090, 8024, 8508, 9027, 10030, 10620, 10635, 12036, 12053, 12762, 14180, 15045, 17016, 18054, 20060, 21240, 21270, 24072, 24106, 25524, 28360, 30090, 31905, 36108, 36159, 40120, 41831, 42540, 45135, 48212, 51048, 60180, 60265, 63810, 72216, 72318, 83662, 85080, 90270, 96424, 108477, 120360, 120530, 125493, 127620, 144636, 167324, 180540, 180795, 209155, 216954, 241060, 250986, 255240, 289272, 334648, 361080, 361590, 376479, 418310, 433908, 482120, 501972, 542385, 627465, 711127, 723180, 752958, 836620, 867816, 1003944, 1084770, 1254930, 1422254, 1446360, 1505916, 1673240, 1882395, 2133381, 2169540, 2509860, 2844508, 3011832, 3555635, 3764790, 4266762, 4339080, 5019720, 5689016, 6400143, 7111270, 7529580, 8533524, 10666905, 12800286, 14222540, 15059160, 17067048, 21333810, 25600572, 28445080, 32000715, 42667620, 51201144, 64001430, 85335240, 128002860, 256005720]

約数ペア:

[(1, 256005720), (2, 128002860), (3, 85335240), (4, 64001430), (5, 51201144), (6, 42667620), (8, 32000715), (9, 28445080), (10, 25600572), (12, 21333810), (15, 17067048), (17, 15059160), (18, 14222540), (20, 12800286), (24, 10666905), (30, 8533524), (34, 7529580), (36, 7111270), (40, 6400143), (45, 5689016), (51, 5019720), (59, 4339080), (60, 4266762), (68, 3764790), (72, 3555635), (85, 3011832), (90, 2844508), (102, 2509860), (118, 2169540), (120, 2133381), (136, 1882395), (153, 1673240), (170, 1505916), (177, 1446360), (180, 1422254), (204, 1254930), (236, 1084770), (255, 1003944), (295, 867816), (306, 836620), (340, 752958), (354, 723180), (360, 711127), (408, 627465), (472, 542385), (510, 501972), (531, 482120), (590, 433908), (612, 418310), (680, 376479), (708, 361590), (709, 361080), (765, 334648), (885, 289272), (1003, 255240), (1020, 250986), (1062, 241060), (1180, 216954), (1224, 209155), (1416, 180795), (1418, 180540), (1530, 167324), (1770, 144636), (2006, 127620), (2040, 125493), (2124, 120530), (2127, 120360), (2360, 108477), (2655, 96424), (2836, 90270), (3009, 85080), (3060, 83662), (3540, 72318), (3545, 72216), (4012, 63810), (4248, 60265), (4254, 60180), (5015, 51048), (5310, 48212), (5672, 45135), (6018, 42540), (6120, 41831), (6381, 40120), (7080, 36159), (7090, 36108), (8024, 31905), (8508, 30090), (9027, 28360), (10030, 25524), (10620, 24106), (10635, 24072), (12036, 21270), (12053, 21240), (12762, 20060), (14180, 18054), (15045, 17016)]