31307520

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1$

素因数の和:318

約数の個数: 144

約数和(自身を含む): 103606272

約数和(自身を除く): 72298752

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 128, 155, 160, 186, 192, 240, 248, 256, 263, 310, 320, 372, 384, 465, 480, 496, 526, 620, 640, 744, 768, 789, 930, 960, 992, 1052, 1240, 1280, 1315, 1488, 1578, 1860, 1920, 1984, 2104, 2480, 2630, 2976, 3156, 3720, 3840, 3945, 3968, 4208, 4960, 5260, 5952, 6312, 7440, 7890, 7936, 8153, 8416, 9920, 10520, 11904, 12624, 14880, 15780, 16306, 16832, 19840, 21040, 23808, 24459, 25248, 29760, 31560, 32612, 33664, 39680, 40765, 42080, 48918, 50496, 59520, 63120, 65224, 67328, 81530, 84160, 97836, 100992, 119040, 122295, 126240, 130448, 163060, 168320, 195672, 201984, 244590, 252480, 260896, 326120, 336640, 391344, 489180, 504960, 521792, 652240, 782688, 978360, 1009920, 1043584, 1304480, 1565376, 1956720, 2087168, 2608960, 3130752, 3913440, 5217920, 6261504, 7826880, 10435840, 15653760, 31307520]

約数ペア:

[(1, 31307520), (2, 15653760), (3, 10435840), (4, 7826880), (5, 6261504), (6, 5217920), (8, 3913440), (10, 3130752), (12, 2608960), (15, 2087168), (16, 1956720), (20, 1565376), (24, 1304480), (30, 1043584), (31, 1009920), (32, 978360), (40, 782688), (48, 652240), (60, 521792), (62, 504960), (64, 489180), (80, 391344), (93, 336640), (96, 326120), (120, 260896), (124, 252480), (128, 244590), (155, 201984), (160, 195672), (186, 168320), (192, 163060), (240, 130448), (248, 126240), (256, 122295), (263, 119040), (310, 100992), (320, 97836), (372, 84160), (384, 81530), (465, 67328), (480, 65224), (496, 63120), (526, 59520), (620, 50496), (640, 48918), (744, 42080), (768, 40765), (789, 39680), (930, 33664), (960, 32612), (992, 31560), (1052, 29760), (1240, 25248), (1280, 24459), (1315, 23808), (1488, 21040), (1578, 19840), (1860, 16832), (1920, 16306), (1984, 15780), (2104, 14880), (2480, 12624), (2630, 11904), (2976, 10520), (3156, 9920), (3720, 8416), (3840, 8153), (3945, 7936), (3968, 7890), (4208, 7440), (4960, 6312), (5260, 5952)]