20997120

素因数分解:

$2^{10}\times 3^1\times 5^1\times {\mathrm{1367}}^1$

素因数の和:1395

約数の個数: 88

約数和(自身を含む): 67207104

約数和(自身を除く): 46209984

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, 1024, 1280, 1367, 1536, 1920, 2560, 2734, 3072, 3840, 4101, 5120, 5468, 6835, 7680, 8202, 10936, 13670, 15360, 16404, 20505, 21872, 27340, 32808, 41010, 43744, 54680, 65616, 82020, 87488, 109360, 131232, 164040, 174976, 218720, 262464, 328080, 349952, 437440, 524928, 656160, 699904, 874880, 1049856, 1312320, 1399808, 1749760, 2099712, 2624640, 3499520, 4199424, 5249280, 6999040, 10498560, 20997120]

約数ペア:

[(1, 20997120), (2, 10498560), (3, 6999040), (4, 5249280), (5, 4199424), (6, 3499520), (8, 2624640), (10, 2099712), (12, 1749760), (15, 1399808), (16, 1312320), (20, 1049856), (24, 874880), (30, 699904), (32, 656160), (40, 524928), (48, 437440), (60, 349952), (64, 328080), (80, 262464), (96, 218720), (120, 174976), (128, 164040), (160, 131232), (192, 109360), (240, 87488), (256, 82020), (320, 65616), (384, 54680), (480, 43744), (512, 41010), (640, 32808), (768, 27340), (960, 21872), (1024, 20505), (1280, 16404), (1367, 15360), (1536, 13670), (1920, 10936), (2560, 8202), (2734, 7680), (3072, 6835), (3840, 5468), (4101, 5120)]