2499840

素因数分解:

$2^8\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1$

素因数の和:65

約数の個数: 216

約数和(自身を含む): 10203648

約数和(自身を除く): 7703808

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 31, 32, 35, 36, 40, 42, 45, 48, 56, 60, 62, 63, 64, 70, 72, 80, 84, 90, 93, 96, 105, 112, 120, 124, 126, 128, 140, 144, 155, 160, 168, 180, 186, 192, 210, 217, 224, 240, 248, 252, 256, 279, 280, 288, 310, 315, 320, 336, 360, 372, 384, 420, 434, 448, 465, 480, 496, 504, 558, 560, 576, 620, 630, 640, 651, 672, 720, 744, 768, 840, 868, 896, 930, 960, 992, 1008, 1085, 1116, 1120, 1152, 1240, 1260, 1280, 1302, 1344, 1395, 1440, 1488, 1680, 1736, 1792, 1860, 1920, 1953, 1984, 2016, 2170, 2232, 2240, 2304, 2480, 2520, 2604, 2688, 2790, 2880, 2976, 3255, 3360, 3472, 3720, 3840, 3906, 3968, 4032, 4340, 4464, 4480, 4960, 5040, 5208, 5376, 5580, 5760, 5952, 6510, 6720, 6944, 7440, 7812, 7936, 8064, 8680, 8928, 8960, 9765, 9920, 10080, 10416, 11160, 11520, 11904, 13020, 13440, 13888, 14880, 15624, 16128, 17360, 17856, 19530, 19840, 20160, 20832, 22320, 23808, 26040, 26880, 27776, 29760, 31248, 34720, 35712, 39060, 39680, 40320, 41664, 44640, 52080, 55552, 59520, 62496, 69440, 71424, 78120, 80640, 83328, 89280, 104160, 119040, 124992, 138880, 156240, 166656, 178560, 208320, 249984, 277760, 312480, 357120, 416640, 499968, 624960, 833280, 1249920, 2499840]

約数ペア:

[(1, 2499840), (2, 1249920), (3, 833280), (4, 624960), (5, 499968), (6, 416640), (7, 357120), (8, 312480), (9, 277760), (10, 249984), (12, 208320), (14, 178560), (15, 166656), (16, 156240), (18, 138880), (20, 124992), (21, 119040), (24, 104160), (28, 89280), (30, 83328), (31, 80640), (32, 78120), (35, 71424), (36, 69440), (40, 62496), (42, 59520), (45, 55552), (48, 52080), (56, 44640), (60, 41664), (62, 40320), (63, 39680), (64, 39060), (70, 35712), (72, 34720), (80, 31248), (84, 29760), (90, 27776), (93, 26880), (96, 26040), (105, 23808), (112, 22320), (120, 20832), (124, 20160), (126, 19840), (128, 19530), (140, 17856), (144, 17360), (155, 16128), (160, 15624), (168, 14880), (180, 13888), (186, 13440), (192, 13020), (210, 11904), (217, 11520), (224, 11160), (240, 10416), (248, 10080), (252, 9920), (256, 9765), (279, 8960), (280, 8928), (288, 8680), (310, 8064), (315, 7936), (320, 7812), (336, 7440), (360, 6944), (372, 6720), (384, 6510), (420, 5952), (434, 5760), (448, 5580), (465, 5376), (480, 5208), (496, 5040), (504, 4960), (558, 4480), (560, 4464), (576, 4340), (620, 4032), (630, 3968), (640, 3906), (651, 3840), (672, 3720), (720, 3472), (744, 3360), (768, 3255), (840, 2976), (868, 2880), (896, 2790), (930, 2688), (960, 2604), (992, 2520), (1008, 2480), (1085, 2304), (1116, 2240), (1120, 2232), (1152, 2170), (1240, 2016), (1260, 1984), (1280, 1953), (1302, 1920), (1344, 1860), (1395, 1792), (1440, 1736), (1488, 1680)]