256187400

素因数分解:

$2^3\times 3^1\times 5^2\times 7^1\times {\mathrm{181}}^1\times {\mathrm{337}}^1$

素因数の和:544

約数の個数: 192

約数和(自身を含む): 915358080

約数和(自身を除く): 659170680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 50, 56, 60, 70, 75, 84, 100, 105, 120, 140, 150, 168, 175, 181, 200, 210, 280, 300, 337, 350, 362, 420, 525, 543, 600, 674, 700, 724, 840, 905, 1011, 1050, 1086, 1267, 1348, 1400, 1448, 1685, 1810, 2022, 2100, 2172, 2359, 2534, 2696, 2715, 3370, 3620, 3801, 4044, 4200, 4344, 4525, 4718, 5055, 5068, 5430, 6335, 6740, 7077, 7240, 7602, 8088, 8425, 9050, 9436, 10110, 10136, 10860, 11795, 12670, 13480, 13575, 14154, 15204, 16850, 18100, 18872, 19005, 20220, 21720, 23590, 25275, 25340, 27150, 28308, 30408, 31675, 33700, 35385, 36200, 38010, 40440, 47180, 50550, 50680, 54300, 56616, 58975, 60997, 63350, 67400, 70770, 76020, 94360, 95025, 101100, 108600, 117950, 121994, 126700, 141540, 152040, 176925, 182991, 190050, 202200, 235900, 243988, 253400, 283080, 304985, 353850, 365982, 380100, 426979, 471800, 487976, 609970, 707700, 731964, 760200, 853958, 914955, 1219940, 1280937, 1415400, 1463928, 1524925, 1707916, 1829910, 2134895, 2439880, 2561874, 3049850, 3415832, 3659820, 4269790, 4574775, 5123748, 6099700, 6404685, 7319640, 8539580, 9149550, 10247496, 10674475, 12199400, 12809370, 17079160, 18299100, 21348950, 25618740, 32023425, 36598200, 42697900, 51237480, 64046850, 85395800, 128093700, 256187400]

約数ペア:

[(1, 256187400), (2, 128093700), (3, 85395800), (4, 64046850), (5, 51237480), (6, 42697900), (7, 36598200), (8, 32023425), (10, 25618740), (12, 21348950), (14, 18299100), (15, 17079160), (20, 12809370), (21, 12199400), (24, 10674475), (25, 10247496), (28, 9149550), (30, 8539580), (35, 7319640), (40, 6404685), (42, 6099700), (50, 5123748), (56, 4574775), (60, 4269790), (70, 3659820), (75, 3415832), (84, 3049850), (100, 2561874), (105, 2439880), (120, 2134895), (140, 1829910), (150, 1707916), (168, 1524925), (175, 1463928), (181, 1415400), (200, 1280937), (210, 1219940), (280, 914955), (300, 853958), (337, 760200), (350, 731964), (362, 707700), (420, 609970), (525, 487976), (543, 471800), (600, 426979), (674, 380100), (700, 365982), (724, 353850), (840, 304985), (905, 283080), (1011, 253400), (1050, 243988), (1086, 235900), (1267, 202200), (1348, 190050), (1400, 182991), (1448, 176925), (1685, 152040), (1810, 141540), (2022, 126700), (2100, 121994), (2172, 117950), (2359, 108600), (2534, 101100), (2696, 95025), (2715, 94360), (3370, 76020), (3620, 70770), (3801, 67400), (4044, 63350), (4200, 60997), (4344, 58975), (4525, 56616), (4718, 54300), (5055, 50680), (5068, 50550), (5430, 47180), (6335, 40440), (6740, 38010), (7077, 36200), (7240, 35385), (7602, 33700), (8088, 31675), (8425, 30408), (9050, 28308), (9436, 27150), (10110, 25340), (10136, 25275), (10860, 23590), (11795, 21720), (12670, 20220), (13480, 19005), (13575, 18872), (14154, 18100), (15204, 16850)]