256670640

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{331}}^1\times {\mathrm{359}}^1$

素因数の和:712

約数の個数: 160

約数和(自身を含む): 889228800

約数和(自身を除く): 632558160

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 331, 359, 360, 432, 540, 662, 718, 720, 993, 1077, 1080, 1324, 1436, 1655, 1795, 1986, 2154, 2160, 2648, 2872, 2979, 3231, 3310, 3590, 3972, 4308, 4965, 5296, 5385, 5744, 5958, 6462, 6620, 7180, 7944, 8616, 8937, 9693, 9930, 10770, 11916, 12924, 13240, 14360, 14895, 15888, 16155, 17232, 17874, 19386, 19860, 21540, 23832, 25848, 26480, 28720, 29790, 32310, 35748, 38772, 39720, 43080, 44685, 47664, 48465, 51696, 59580, 64620, 71496, 77544, 79440, 86160, 89370, 96930, 118829, 119160, 129240, 142992, 155088, 178740, 193860, 237658, 238320, 258480, 356487, 357480, 387720, 475316, 594145, 712974, 714960, 775440, 950632, 1069461, 1188290, 1425948, 1782435, 1901264, 2138922, 2376580, 2851896, 3208383, 3564870, 4277844, 4753160, 5347305, 5703792, 6416766, 7129740, 8555688, 9506320, 10694610, 12833532, 14259480, 16041915, 17111376, 21389220, 25667064, 28518960, 32083830, 42778440, 51334128, 64167660, 85556880, 128335320, 256670640]

約数ペア:

[(1, 256670640), (2, 128335320), (3, 85556880), (4, 64167660), (5, 51334128), (6, 42778440), (8, 32083830), (9, 28518960), (10, 25667064), (12, 21389220), (15, 17111376), (16, 16041915), (18, 14259480), (20, 12833532), (24, 10694610), (27, 9506320), (30, 8555688), (36, 7129740), (40, 6416766), (45, 5703792), (48, 5347305), (54, 4753160), (60, 4277844), (72, 3564870), (80, 3208383), (90, 2851896), (108, 2376580), (120, 2138922), (135, 1901264), (144, 1782435), (180, 1425948), (216, 1188290), (240, 1069461), (270, 950632), (331, 775440), (359, 714960), (360, 712974), (432, 594145), (540, 475316), (662, 387720), (718, 357480), (720, 356487), (993, 258480), (1077, 238320), (1080, 237658), (1324, 193860), (1436, 178740), (1655, 155088), (1795, 142992), (1986, 129240), (2154, 119160), (2160, 118829), (2648, 96930), (2872, 89370), (2979, 86160), (3231, 79440), (3310, 77544), (3590, 71496), (3972, 64620), (4308, 59580), (4965, 51696), (5296, 48465), (5385, 47664), (5744, 44685), (5958, 43080), (6462, 39720), (6620, 38772), (7180, 35748), (7944, 32310), (8616, 29790), (8937, 28720), (9693, 26480), (9930, 25848), (10770, 23832), (11916, 21540), (12924, 19860), (13240, 19386), (14360, 17874), (14895, 17232), (15888, 16155)]