20177280

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1$

素因数の和:169

約数の個数: 192

約数和(自身を含む): 72558720

約数和(自身を除く): 52381440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 32, 36, 40, 45, 48, 60, 62, 64, 72, 80, 90, 93, 96, 113, 120, 124, 128, 144, 155, 160, 180, 186, 192, 226, 240, 248, 279, 288, 310, 320, 339, 360, 372, 384, 452, 465, 480, 496, 558, 565, 576, 620, 640, 678, 720, 744, 904, 930, 960, 992, 1017, 1116, 1130, 1152, 1240, 1356, 1395, 1440, 1488, 1695, 1808, 1860, 1920, 1984, 2034, 2232, 2260, 2480, 2712, 2790, 2880, 2976, 3390, 3503, 3616, 3720, 3968, 4068, 4464, 4520, 4960, 5085, 5424, 5580, 5760, 5952, 6780, 7006, 7232, 7440, 8136, 8928, 9040, 9920, 10170, 10509, 10848, 11160, 11904, 13560, 14012, 14464, 14880, 16272, 17515, 17856, 18080, 19840, 20340, 21018, 21696, 22320, 27120, 28024, 29760, 31527, 32544, 35030, 35712, 36160, 40680, 42036, 43392, 44640, 52545, 54240, 56048, 59520, 63054, 65088, 70060, 72320, 81360, 84072, 89280, 105090, 108480, 112096, 126108, 130176, 140120, 157635, 162720, 168144, 178560, 210180, 216960, 224192, 252216, 280240, 315270, 325440, 336288, 420360, 448384, 504432, 560480, 630540, 650880, 672576, 840720, 1008864, 1120960, 1261080, 1345152, 1681440, 2017728, 2241920, 2522160, 3362880, 4035456, 5044320, 6725760, 10088640, 20177280]

約数ペア:

[(1, 20177280), (2, 10088640), (3, 6725760), (4, 5044320), (5, 4035456), (6, 3362880), (8, 2522160), (9, 2241920), (10, 2017728), (12, 1681440), (15, 1345152), (16, 1261080), (18, 1120960), (20, 1008864), (24, 840720), (30, 672576), (31, 650880), (32, 630540), (36, 560480), (40, 504432), (45, 448384), (48, 420360), (60, 336288), (62, 325440), (64, 315270), (72, 280240), (80, 252216), (90, 224192), (93, 216960), (96, 210180), (113, 178560), (120, 168144), (124, 162720), (128, 157635), (144, 140120), (155, 130176), (160, 126108), (180, 112096), (186, 108480), (192, 105090), (226, 89280), (240, 84072), (248, 81360), (279, 72320), (288, 70060), (310, 65088), (320, 63054), (339, 59520), (360, 56048), (372, 54240), (384, 52545), (452, 44640), (465, 43392), (480, 42036), (496, 40680), (558, 36160), (565, 35712), (576, 35030), (620, 32544), (640, 31527), (678, 29760), (720, 28024), (744, 27120), (904, 22320), (930, 21696), (960, 21018), (992, 20340), (1017, 19840), (1116, 18080), (1130, 17856), (1152, 17515), (1240, 16272), (1356, 14880), (1395, 14464), (1440, 14012), (1488, 13560), (1695, 11904), (1808, 11160), (1860, 10848), (1920, 10509), (1984, 10170), (2034, 9920), (2232, 9040), (2260, 8928), (2480, 8136), (2712, 7440), (2790, 7232), (2880, 7006), (2976, 6780), (3390, 5952), (3503, 5760), (3616, 5580), (3720, 5424), (3968, 5085), (4068, 4960), (4464, 4520)]