19883520

素因数分解:

$2^9\times 3^2\times 5^1\times {\mathrm{863}}^1$

素因数の和:892

約数の個数: 120

約数和(自身を含む): 68942016

約数和(自身を除く): 49058496

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, 240, 256, 288, 320, 360, 384, 480, 512, 576, 640, 720, 768, 863, 960, 1152, 1280, 1440, 1536, 1726, 1920, 2304, 2560, 2589, 2880, 3452, 3840, 4315, 4608, 5178, 5760, 6904, 7680, 7767, 8630, 10356, 11520, 12945, 13808, 15534, 17260, 20712, 23040, 25890, 27616, 31068, 34520, 38835, 41424, 51780, 55232, 62136, 69040, 77670, 82848, 103560, 110464, 124272, 138080, 155340, 165696, 207120, 220928, 248544, 276160, 310680, 331392, 414240, 441856, 497088, 552320, 621360, 662784, 828480, 994176, 1104640, 1242720, 1325568, 1656960, 1988352, 2209280, 2485440, 3313920, 3976704, 4970880, 6627840, 9941760, 19883520]

約数ペア:

[(1, 19883520), (2, 9941760), (3, 6627840), (4, 4970880), (5, 3976704), (6, 3313920), (8, 2485440), (9, 2209280), (10, 1988352), (12, 1656960), (15, 1325568), (16, 1242720), (18, 1104640), (20, 994176), (24, 828480), (30, 662784), (32, 621360), (36, 552320), (40, 497088), (45, 441856), (48, 414240), (60, 331392), (64, 310680), (72, 276160), (80, 248544), (90, 220928), (96, 207120), (120, 165696), (128, 155340), (144, 138080), (160, 124272), (180, 110464), (192, 103560), (240, 82848), (256, 77670), (288, 69040), (320, 62136), (360, 55232), (384, 51780), (480, 41424), (512, 38835), (576, 34520), (640, 31068), (720, 27616), (768, 25890), (863, 23040), (960, 20712), (1152, 17260), (1280, 15534), (1440, 13808), (1536, 12945), (1726, 11520), (1920, 10356), (2304, 8630), (2560, 7767), (2589, 7680), (2880, 6904), (3452, 5760), (3840, 5178), (4315, 4608)]