20741760

素因数分解:

$2^7\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{277}}^1$

素因数の和:315

約数の個数: 192

約数和(自身を含む): 77411880

約数和(自身を除く): 56670120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 64, 65, 72, 78, 80, 90, 96, 104, 117, 120, 128, 130, 144, 156, 160, 180, 192, 195, 208, 234, 240, 260, 277, 288, 312, 320, 360, 384, 390, 416, 468, 480, 520, 554, 576, 585, 624, 640, 720, 780, 831, 832, 936, 960, 1040, 1108, 1152, 1170, 1248, 1385, 1440, 1560, 1662, 1664, 1872, 1920, 2080, 2216, 2340, 2493, 2496, 2770, 2880, 3120, 3324, 3601, 3744, 4155, 4160, 4432, 4680, 4986, 4992, 5540, 5760, 6240, 6648, 7202, 7488, 8310, 8320, 8864, 9360, 9972, 10803, 11080, 12465, 12480, 13296, 14404, 14976, 16620, 17728, 18005, 18720, 19944, 21606, 22160, 24930, 24960, 26592, 28808, 32409, 33240, 35456, 36010, 37440, 39888, 43212, 44320, 49860, 53184, 54015, 57616, 64818, 66480, 72020, 74880, 79776, 86424, 88640, 99720, 106368, 108030, 115232, 129636, 132960, 144040, 159552, 162045, 172848, 177280, 199440, 216060, 230464, 259272, 265920, 288080, 319104, 324090, 345696, 398880, 432120, 460928, 518544, 531840, 576160, 648180, 691392, 797760, 864240, 1037088, 1152320, 1296360, 1382784, 1595520, 1728480, 2074176, 2304640, 2592720, 3456960, 4148352, 5185440, 6913920, 10370880, 20741760]

約数ペア:

[(1, 20741760), (2, 10370880), (3, 6913920), (4, 5185440), (5, 4148352), (6, 3456960), (8, 2592720), (9, 2304640), (10, 2074176), (12, 1728480), (13, 1595520), (15, 1382784), (16, 1296360), (18, 1152320), (20, 1037088), (24, 864240), (26, 797760), (30, 691392), (32, 648180), (36, 576160), (39, 531840), (40, 518544), (45, 460928), (48, 432120), (52, 398880), (60, 345696), (64, 324090), (65, 319104), (72, 288080), (78, 265920), (80, 259272), (90, 230464), (96, 216060), (104, 199440), (117, 177280), (120, 172848), (128, 162045), (130, 159552), (144, 144040), (156, 132960), (160, 129636), (180, 115232), (192, 108030), (195, 106368), (208, 99720), (234, 88640), (240, 86424), (260, 79776), (277, 74880), (288, 72020), (312, 66480), (320, 64818), (360, 57616), (384, 54015), (390, 53184), (416, 49860), (468, 44320), (480, 43212), (520, 39888), (554, 37440), (576, 36010), (585, 35456), (624, 33240), (640, 32409), (720, 28808), (780, 26592), (831, 24960), (832, 24930), (936, 22160), (960, 21606), (1040, 19944), (1108, 18720), (1152, 18005), (1170, 17728), (1248, 16620), (1385, 14976), (1440, 14404), (1560, 13296), (1662, 12480), (1664, 12465), (1872, 11080), (1920, 10803), (2080, 9972), (2216, 9360), (2340, 8864), (2493, 8320), (2496, 8310), (2770, 7488), (2880, 7202), (3120, 6648), (3324, 6240), (3601, 5760), (3744, 5540), (4155, 4992), (4160, 4986), (4432, 4680)]