21765120

素因数分解:

$2^{10}\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1$

素因数の和:150

約数の個数: 176

約数和(自身を含む): 75657120

約数和(自身を除く): 53892000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 109, 120, 128, 130, 156, 160, 192, 195, 208, 218, 240, 256, 260, 312, 320, 327, 384, 390, 416, 436, 480, 512, 520, 545, 624, 640, 654, 768, 780, 832, 872, 960, 1024, 1040, 1090, 1248, 1280, 1308, 1417, 1536, 1560, 1635, 1664, 1744, 1920, 2080, 2180, 2496, 2560, 2616, 2834, 3072, 3120, 3270, 3328, 3488, 3840, 4160, 4251, 4360, 4992, 5120, 5232, 5668, 6240, 6540, 6656, 6976, 7085, 7680, 8320, 8502, 8720, 9984, 10464, 11336, 12480, 13080, 13312, 13952, 14170, 15360, 16640, 17004, 17440, 19968, 20928, 21255, 22672, 24960, 26160, 27904, 28340, 33280, 34008, 34880, 39936, 41856, 42510, 45344, 49920, 52320, 55808, 56680, 66560, 68016, 69760, 83712, 85020, 90688, 99840, 104640, 111616, 113360, 136032, 139520, 167424, 170040, 181376, 199680, 209280, 226720, 272064, 279040, 334848, 340080, 362752, 418560, 453440, 544128, 558080, 680160, 725504, 837120, 906880, 1088256, 1360320, 1451008, 1674240, 1813760, 2176512, 2720640, 3627520, 4353024, 5441280, 7255040, 10882560, 21765120]

約数ペア:

[(1, 21765120), (2, 10882560), (3, 7255040), (4, 5441280), (5, 4353024), (6, 3627520), (8, 2720640), (10, 2176512), (12, 1813760), (13, 1674240), (15, 1451008), (16, 1360320), (20, 1088256), (24, 906880), (26, 837120), (30, 725504), (32, 680160), (39, 558080), (40, 544128), (48, 453440), (52, 418560), (60, 362752), (64, 340080), (65, 334848), (78, 279040), (80, 272064), (96, 226720), (104, 209280), (109, 199680), (120, 181376), (128, 170040), (130, 167424), (156, 139520), (160, 136032), (192, 113360), (195, 111616), (208, 104640), (218, 99840), (240, 90688), (256, 85020), (260, 83712), (312, 69760), (320, 68016), (327, 66560), (384, 56680), (390, 55808), (416, 52320), (436, 49920), (480, 45344), (512, 42510), (520, 41856), (545, 39936), (624, 34880), (640, 34008), (654, 33280), (768, 28340), (780, 27904), (832, 26160), (872, 24960), (960, 22672), (1024, 21255), (1040, 20928), (1090, 19968), (1248, 17440), (1280, 17004), (1308, 16640), (1417, 15360), (1536, 14170), (1560, 13952), (1635, 13312), (1664, 13080), (1744, 12480), (1920, 11336), (2080, 10464), (2180, 9984), (2496, 8720), (2560, 8502), (2616, 8320), (2834, 7680), (3072, 7085), (3120, 6976), (3270, 6656), (3328, 6540), (3488, 6240), (3840, 5668), (4160, 5232), (4251, 5120), (4360, 4992)]