128885680

素因数分解:

$2^4\times 5^1\times 7^4\times {\mathrm{11}}^1\times {\mathrm{61}}^1$

素因数の和:113

約数の個数: 200

約数和(自身を含む): 387613584

約数和(自身を除く): 258727904

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 49, 55, 56, 61, 70, 77, 80, 88, 98, 110, 112, 122, 140, 154, 176, 196, 220, 244, 245, 280, 305, 308, 343, 385, 392, 427, 440, 488, 490, 539, 560, 610, 616, 671, 686, 770, 784, 854, 880, 976, 980, 1078, 1220, 1232, 1342, 1372, 1540, 1708, 1715, 1960, 2135, 2156, 2401, 2440, 2684, 2695, 2744, 2989, 3080, 3355, 3416, 3430, 3773, 3920, 4270, 4312, 4697, 4802, 4880, 5368, 5390, 5488, 5978, 6160, 6710, 6832, 6860, 7546, 8540, 8624, 9394, 9604, 10736, 10780, 11956, 12005, 13420, 13720, 14945, 15092, 17080, 18788, 18865, 19208, 20923, 21560, 23485, 23912, 24010, 26411, 26840, 27440, 29890, 30184, 32879, 34160, 37576, 37730, 38416, 41846, 43120, 46970, 47824, 48020, 52822, 53680, 59780, 60368, 65758, 75152, 75460, 83692, 93940, 96040, 104615, 105644, 119560, 131516, 132055, 146461, 150920, 164395, 167384, 187880, 192080, 209230, 211288, 230153, 239120, 263032, 264110, 292922, 301840, 328790, 334768, 375760, 418460, 422576, 460306, 526064, 528220, 585844, 657580, 732305, 836920, 920612, 1056440, 1150765, 1171688, 1315160, 1464610, 1611071, 1673840, 1841224, 2112880, 2301530, 2343376, 2630320, 2929220, 3222142, 3682448, 4603060, 5858440, 6444284, 8055355, 9206120, 11716880, 12888568, 16110710, 18412240, 25777136, 32221420, 64442840, 128885680]

約数ペア:

[(1, 128885680), (2, 64442840), (4, 32221420), (5, 25777136), (7, 18412240), (8, 16110710), (10, 12888568), (11, 11716880), (14, 9206120), (16, 8055355), (20, 6444284), (22, 5858440), (28, 4603060), (35, 3682448), (40, 3222142), (44, 2929220), (49, 2630320), (55, 2343376), (56, 2301530), (61, 2112880), (70, 1841224), (77, 1673840), (80, 1611071), (88, 1464610), (98, 1315160), (110, 1171688), (112, 1150765), (122, 1056440), (140, 920612), (154, 836920), (176, 732305), (196, 657580), (220, 585844), (244, 528220), (245, 526064), (280, 460306), (305, 422576), (308, 418460), (343, 375760), (385, 334768), (392, 328790), (427, 301840), (440, 292922), (488, 264110), (490, 263032), (539, 239120), (560, 230153), (610, 211288), (616, 209230), (671, 192080), (686, 187880), (770, 167384), (784, 164395), (854, 150920), (880, 146461), (976, 132055), (980, 131516), (1078, 119560), (1220, 105644), (1232, 104615), (1342, 96040), (1372, 93940), (1540, 83692), (1708, 75460), (1715, 75152), (1960, 65758), (2135, 60368), (2156, 59780), (2401, 53680), (2440, 52822), (2684, 48020), (2695, 47824), (2744, 46970), (2989, 43120), (3080, 41846), (3355, 38416), (3416, 37730), (3430, 37576), (3773, 34160), (3920, 32879), (4270, 30184), (4312, 29890), (4697, 27440), (4802, 26840), (4880, 26411), (5368, 24010), (5390, 23912), (5488, 23485), (5978, 21560), (6160, 20923), (6710, 19208), (6832, 18865), (6860, 18788), (7546, 17080), (8540, 15092), (8624, 14945), (9394, 13720), (9604, 13420), (10736, 12005), (10780, 11956)]