20404800

素因数分解:

$2^6\times 3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1$

素因数の和:150

約数の個数: 252

約数和(自身を含む): 78818740

約数和(自身を除く): 58413940

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 25, 26, 30, 32, 36, 39, 40, 45, 48, 50, 52, 60, 64, 65, 72, 75, 78, 80, 90, 96, 100, 104, 109, 117, 120, 130, 144, 150, 156, 160, 180, 192, 195, 200, 208, 218, 225, 234, 240, 260, 288, 300, 312, 320, 325, 327, 360, 390, 400, 416, 436, 450, 468, 480, 520, 545, 576, 585, 600, 624, 650, 654, 720, 780, 800, 832, 872, 900, 936, 960, 975, 981, 1040, 1090, 1170, 1200, 1248, 1300, 1308, 1417, 1440, 1560, 1600, 1635, 1744, 1800, 1872, 1950, 1962, 2080, 2180, 2340, 2400, 2496, 2600, 2616, 2725, 2834, 2880, 2925, 3120, 3270, 3488, 3600, 3744, 3900, 3924, 4160, 4251, 4360, 4680, 4800, 4905, 5200, 5232, 5450, 5668, 5850, 6240, 6540, 6976, 7085, 7200, 7488, 7800, 7848, 8175, 8502, 8720, 9360, 9810, 10400, 10464, 10900, 11336, 11700, 12480, 12753, 13080, 14170, 14400, 15600, 15696, 16350, 17004, 17440, 18720, 19620, 20800, 20928, 21255, 21800, 22672, 23400, 24525, 25506, 26160, 28340, 31200, 31392, 32700, 34008, 34880, 35425, 37440, 39240, 42510, 43600, 45344, 46800, 49050, 51012, 52320, 56680, 62400, 62784, 63765, 65400, 68016, 70850, 78480, 85020, 87200, 90688, 93600, 98100, 102024, 104640, 106275, 113360, 127530, 130800, 136032, 141700, 156960, 170040, 174400, 187200, 196200, 204048, 212550, 226720, 255060, 261600, 272064, 283400, 313920, 318825, 340080, 392400, 408096, 425100, 453440, 510120, 523200, 566800, 637650, 680160, 784800, 816192, 850200, 1020240, 1133600, 1275300, 1360320, 1569600, 1700400, 2040480, 2267200, 2550600, 3400800, 4080960, 5101200, 6801600, 10202400, 20404800]

約数ペア:

[(1, 20404800), (2, 10202400), (3, 6801600), (4, 5101200), (5, 4080960), (6, 3400800), (8, 2550600), (9, 2267200), (10, 2040480), (12, 1700400), (13, 1569600), (15, 1360320), (16, 1275300), (18, 1133600), (20, 1020240), (24, 850200), (25, 816192), (26, 784800), (30, 680160), (32, 637650), (36, 566800), (39, 523200), (40, 510120), (45, 453440), (48, 425100), (50, 408096), (52, 392400), (60, 340080), (64, 318825), (65, 313920), (72, 283400), (75, 272064), (78, 261600), (80, 255060), (90, 226720), (96, 212550), (100, 204048), (104, 196200), (109, 187200), (117, 174400), (120, 170040), (130, 156960), (144, 141700), (150, 136032), (156, 130800), (160, 127530), (180, 113360), (192, 106275), (195, 104640), (200, 102024), (208, 98100), (218, 93600), (225, 90688), (234, 87200), (240, 85020), (260, 78480), (288, 70850), (300, 68016), (312, 65400), (320, 63765), (325, 62784), (327, 62400), (360, 56680), (390, 52320), (400, 51012), (416, 49050), (436, 46800), (450, 45344), (468, 43600), (480, 42510), (520, 39240), (545, 37440), (576, 35425), (585, 34880), (600, 34008), (624, 32700), (650, 31392), (654, 31200), (720, 28340), (780, 26160), (800, 25506), (832, 24525), (872, 23400), (900, 22672), (936, 21800), (960, 21255), (975, 20928), (981, 20800), (1040, 19620), (1090, 18720), (1170, 17440), (1200, 17004), (1248, 16350), (1300, 15696), (1308, 15600), (1417, 14400), (1440, 14170), (1560, 13080), (1600, 12753), (1635, 12480), (1744, 11700), (1800, 11336), (1872, 10900), (1950, 10464), (1962, 10400), (2080, 9810), (2180, 9360), (2340, 8720), (2400, 8502), (2496, 8175), (2600, 7848), (2616, 7800), (2725, 7488), (2834, 7200), (2880, 7085), (2925, 6976), (3120, 6540), (3270, 6240), (3488, 5850), (3600, 5668), (3744, 5450), (3900, 5232), (3924, 5200), (4160, 4905), (4251, 4800), (4360, 4680)]