161729280

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1$

素因数の和:267

約数の個数: 216

約数和(自身を含む): 569172240

約数和(自身を除く): 407442960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 101, 120, 128, 139, 144, 160, 180, 192, 202, 240, 256, 278, 288, 303, 320, 360, 384, 404, 417, 480, 505, 556, 576, 606, 640, 695, 720, 768, 808, 834, 909, 960, 1010, 1112, 1152, 1212, 1251, 1280, 1390, 1440, 1515, 1616, 1668, 1818, 1920, 2020, 2085, 2224, 2304, 2424, 2502, 2780, 2880, 3030, 3232, 3336, 3636, 3840, 4040, 4170, 4448, 4545, 4848, 5004, 5560, 5760, 6060, 6255, 6464, 6672, 7272, 8080, 8340, 8896, 9090, 9696, 10008, 11120, 11520, 12120, 12510, 12928, 13344, 14039, 14544, 16160, 16680, 17792, 18180, 19392, 20016, 22240, 24240, 25020, 25856, 26688, 28078, 29088, 32320, 33360, 35584, 36360, 38784, 40032, 42117, 44480, 48480, 50040, 53376, 56156, 58176, 64640, 66720, 70195, 72720, 77568, 80064, 84234, 88960, 96960, 100080, 106752, 112312, 116352, 126351, 129280, 133440, 140390, 145440, 160128, 168468, 177920, 193920, 200160, 210585, 224624, 232704, 252702, 266880, 280780, 290880, 320256, 336936, 387840, 400320, 421170, 449248, 505404, 533760, 561560, 581760, 631755, 673872, 800640, 842340, 898496, 1010808, 1123120, 1163520, 1263510, 1347744, 1601280, 1684680, 1796992, 2021616, 2246240, 2527020, 2695488, 3369360, 3593984, 4043232, 4492480, 5054040, 5390976, 6738720, 8086464, 8984960, 10108080, 10781952, 13477440, 16172928, 17969920, 20216160, 26954880, 32345856, 40432320, 53909760, 80864640, 161729280]

約数ペア:

[(1, 161729280), (2, 80864640), (3, 53909760), (4, 40432320), (5, 32345856), (6, 26954880), (8, 20216160), (9, 17969920), (10, 16172928), (12, 13477440), (15, 10781952), (16, 10108080), (18, 8984960), (20, 8086464), (24, 6738720), (30, 5390976), (32, 5054040), (36, 4492480), (40, 4043232), (45, 3593984), (48, 3369360), (60, 2695488), (64, 2527020), (72, 2246240), (80, 2021616), (90, 1796992), (96, 1684680), (101, 1601280), (120, 1347744), (128, 1263510), (139, 1163520), (144, 1123120), (160, 1010808), (180, 898496), (192, 842340), (202, 800640), (240, 673872), (256, 631755), (278, 581760), (288, 561560), (303, 533760), (320, 505404), (360, 449248), (384, 421170), (404, 400320), (417, 387840), (480, 336936), (505, 320256), (556, 290880), (576, 280780), (606, 266880), (640, 252702), (695, 232704), (720, 224624), (768, 210585), (808, 200160), (834, 193920), (909, 177920), (960, 168468), (1010, 160128), (1112, 145440), (1152, 140390), (1212, 133440), (1251, 129280), (1280, 126351), (1390, 116352), (1440, 112312), (1515, 106752), (1616, 100080), (1668, 96960), (1818, 88960), (1920, 84234), (2020, 80064), (2085, 77568), (2224, 72720), (2304, 70195), (2424, 66720), (2502, 64640), (2780, 58176), (2880, 56156), (3030, 53376), (3232, 50040), (3336, 48480), (3636, 44480), (3840, 42117), (4040, 40032), (4170, 38784), (4448, 36360), (4545, 35584), (4848, 33360), (5004, 32320), (5560, 29088), (5760, 28078), (6060, 26688), (6255, 25856), (6464, 25020), (6672, 24240), (7272, 22240), (8080, 20016), (8340, 19392), (8896, 18180), (9090, 17792), (9696, 16680), (10008, 16160), (11120, 14544), (11520, 14039), (12120, 13344), (12510, 12928)]