20278800

素因数分解:

$2^4\times 3^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:198

約数の個数: 180

約数和(自身を含む): 72559344

約数和(自身を除く): 52280544

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 25, 30, 36, 40, 43, 45, 48, 50, 60, 72, 75, 80, 86, 90, 100, 120, 129, 131, 144, 150, 172, 180, 200, 215, 225, 240, 258, 262, 300, 344, 360, 387, 393, 400, 430, 450, 516, 524, 600, 645, 655, 688, 720, 774, 786, 860, 900, 1032, 1048, 1075, 1179, 1200, 1290, 1310, 1548, 1572, 1720, 1800, 1935, 1965, 2064, 2096, 2150, 2358, 2580, 2620, 3096, 3144, 3225, 3275, 3440, 3600, 3870, 3930, 4300, 4716, 5160, 5240, 5633, 5895, 6192, 6288, 6450, 6550, 7740, 7860, 8600, 9432, 9675, 9825, 10320, 10480, 11266, 11790, 12900, 13100, 15480, 15720, 16899, 17200, 18864, 19350, 19650, 22532, 23580, 25800, 26200, 28165, 29475, 30960, 31440, 33798, 38700, 39300, 45064, 47160, 50697, 51600, 52400, 56330, 58950, 67596, 77400, 78600, 84495, 90128, 94320, 101394, 112660, 117900, 135192, 140825, 154800, 157200, 168990, 202788, 225320, 235800, 253485, 270384, 281650, 337980, 405576, 422475, 450640, 471600, 506970, 563300, 675960, 811152, 844950, 1013940, 1126600, 1267425, 1351920, 1689900, 2027880, 2253200, 2534850, 3379800, 4055760, 5069700, 6759600, 10139400, 20278800]

約数ペア:

[(1, 20278800), (2, 10139400), (3, 6759600), (4, 5069700), (5, 4055760), (6, 3379800), (8, 2534850), (9, 2253200), (10, 2027880), (12, 1689900), (15, 1351920), (16, 1267425), (18, 1126600), (20, 1013940), (24, 844950), (25, 811152), (30, 675960), (36, 563300), (40, 506970), (43, 471600), (45, 450640), (48, 422475), (50, 405576), (60, 337980), (72, 281650), (75, 270384), (80, 253485), (86, 235800), (90, 225320), (100, 202788), (120, 168990), (129, 157200), (131, 154800), (144, 140825), (150, 135192), (172, 117900), (180, 112660), (200, 101394), (215, 94320), (225, 90128), (240, 84495), (258, 78600), (262, 77400), (300, 67596), (344, 58950), (360, 56330), (387, 52400), (393, 51600), (400, 50697), (430, 47160), (450, 45064), (516, 39300), (524, 38700), (600, 33798), (645, 31440), (655, 30960), (688, 29475), (720, 28165), (774, 26200), (786, 25800), (860, 23580), (900, 22532), (1032, 19650), (1048, 19350), (1075, 18864), (1179, 17200), (1200, 16899), (1290, 15720), (1310, 15480), (1548, 13100), (1572, 12900), (1720, 11790), (1800, 11266), (1935, 10480), (1965, 10320), (2064, 9825), (2096, 9675), (2150, 9432), (2358, 8600), (2580, 7860), (2620, 7740), (3096, 6550), (3144, 6450), (3225, 6288), (3275, 6192), (3440, 5895), (3600, 5633), (3870, 5240), (3930, 5160), (4300, 4716)]