21104640

素因数分解:

$2^{11}\times 3^2\times 5^1\times {\mathrm{229}}^1$

素因数の和:262

約数の個数: 144

約数和(自身を含む): 73464300

約数和(自身を除く): 52359660

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, 120, 128, 144, 160, 180, 192, 229, 240, 256, 288, 320, 360, 384, 458, 480, 512, 576, 640, 687, 720, 768, 916, 960, 1024, 1145, 1152, 1280, 1374, 1440, 1536, 1832, 1920, 2048, 2061, 2290, 2304, 2560, 2748, 2880, 3072, 3435, 3664, 3840, 4122, 4580, 4608, 5120, 5496, 5760, 6144, 6870, 7328, 7680, 8244, 9160, 9216, 10240, 10305, 10992, 11520, 13740, 14656, 15360, 16488, 18320, 18432, 20610, 21984, 23040, 27480, 29312, 30720, 32976, 36640, 41220, 43968, 46080, 54960, 58624, 65952, 73280, 82440, 87936, 92160, 109920, 117248, 131904, 146560, 164880, 175872, 219840, 234496, 263808, 293120, 329760, 351744, 439680, 468992, 527616, 586240, 659520, 703488, 879360, 1055232, 1172480, 1319040, 1406976, 1758720, 2110464, 2344960, 2638080, 3517440, 4220928, 5276160, 7034880, 10552320, 21104640]

約数ペア:

[(1, 21104640), (2, 10552320), (3, 7034880), (4, 5276160), (5, 4220928), (6, 3517440), (8, 2638080), (9, 2344960), (10, 2110464), (12, 1758720), (15, 1406976), (16, 1319040), (18, 1172480), (20, 1055232), (24, 879360), (30, 703488), (32, 659520), (36, 586240), (40, 527616), (45, 468992), (48, 439680), (60, 351744), (64, 329760), (72, 293120), (80, 263808), (90, 234496), (96, 219840), (120, 175872), (128, 164880), (144, 146560), (160, 131904), (180, 117248), (192, 109920), (229, 92160), (240, 87936), (256, 82440), (288, 73280), (320, 65952), (360, 58624), (384, 54960), (458, 46080), (480, 43968), (512, 41220), (576, 36640), (640, 32976), (687, 30720), (720, 29312), (768, 27480), (916, 23040), (960, 21984), (1024, 20610), (1145, 18432), (1152, 18320), (1280, 16488), (1374, 15360), (1440, 14656), (1536, 13740), (1832, 11520), (1920, 10992), (2048, 10305), (2061, 10240), (2290, 9216), (2304, 9160), (2560, 8244), (2748, 7680), (2880, 7328), (3072, 6870), (3435, 6144), (3664, 5760), (3840, 5496), (4122, 5120), (4580, 4608)]