21112320

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{2749}}^1$

素因数の和:2775

約数の個数: 80

約数和(自身を含む): 67518000

約数和(自身を除く): 46405680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 512, 640, 768, 960, 1280, 1536, 1920, 2560, 2749, 3840, 5498, 7680, 8247, 10996, 13745, 16494, 21992, 27490, 32988, 41235, 43984, 54980, 65976, 82470, 87968, 109960, 131952, 164940, 175936, 219920, 263904, 329880, 351872, 439840, 527808, 659760, 703744, 879680, 1055616, 1319520, 1407488, 1759360, 2111232, 2639040, 3518720, 4222464, 5278080, 7037440, 10556160, 21112320]

約数ペア:

[(1, 21112320), (2, 10556160), (3, 7037440), (4, 5278080), (5, 4222464), (6, 3518720), (8, 2639040), (10, 2111232), (12, 1759360), (15, 1407488), (16, 1319520), (20, 1055616), (24, 879680), (30, 703744), (32, 659760), (40, 527808), (48, 439840), (60, 351872), (64, 329880), (80, 263904), (96, 219920), (120, 175936), (128, 164940), (160, 131952), (192, 109960), (240, 87968), (256, 82470), (320, 65976), (384, 54980), (480, 43984), (512, 41235), (640, 32988), (768, 27490), (960, 21992), (1280, 16494), (1536, 13745), (1920, 10996), (2560, 8247), (2749, 7680), (3840, 5498)]