21142800

素因数分解:

$2^4\times 3^2\times 5^2\times 7^1\times {\mathrm{839}}^1$

素因数の和:870

約数の個数: 180

約数和(自身を含む): 83952960

約数和(自身を除く): 62810160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 25, 28, 30, 35, 36, 40, 42, 45, 48, 50, 56, 60, 63, 70, 72, 75, 80, 84, 90, 100, 105, 112, 120, 126, 140, 144, 150, 168, 175, 180, 200, 210, 225, 240, 252, 280, 300, 315, 336, 350, 360, 400, 420, 450, 504, 525, 560, 600, 630, 700, 720, 839, 840, 900, 1008, 1050, 1200, 1260, 1400, 1575, 1678, 1680, 1800, 2100, 2517, 2520, 2800, 3150, 3356, 3600, 4195, 4200, 5034, 5040, 5873, 6300, 6712, 7551, 8390, 8400, 10068, 11746, 12585, 12600, 13424, 15102, 16780, 17619, 20136, 20975, 23492, 25170, 25200, 29365, 30204, 33560, 35238, 37755, 40272, 41950, 46984, 50340, 52857, 58730, 60408, 62925, 67120, 70476, 75510, 83900, 88095, 93968, 100680, 105714, 117460, 120816, 125850, 140952, 146825, 151020, 167800, 176190, 188775, 201360, 211428, 234920, 251700, 264285, 281904, 293650, 302040, 335600, 352380, 377550, 422856, 440475, 469840, 503400, 528570, 587300, 604080, 704760, 755100, 845712, 880950, 1006800, 1057140, 1174600, 1321425, 1409520, 1510200, 1761900, 2114280, 2349200, 2642850, 3020400, 3523800, 4228560, 5285700, 7047600, 10571400, 21142800]

約数ペア:

[(1, 21142800), (2, 10571400), (3, 7047600), (4, 5285700), (5, 4228560), (6, 3523800), (7, 3020400), (8, 2642850), (9, 2349200), (10, 2114280), (12, 1761900), (14, 1510200), (15, 1409520), (16, 1321425), (18, 1174600), (20, 1057140), (21, 1006800), (24, 880950), (25, 845712), (28, 755100), (30, 704760), (35, 604080), (36, 587300), (40, 528570), (42, 503400), (45, 469840), (48, 440475), (50, 422856), (56, 377550), (60, 352380), (63, 335600), (70, 302040), (72, 293650), (75, 281904), (80, 264285), (84, 251700), (90, 234920), (100, 211428), (105, 201360), (112, 188775), (120, 176190), (126, 167800), (140, 151020), (144, 146825), (150, 140952), (168, 125850), (175, 120816), (180, 117460), (200, 105714), (210, 100680), (225, 93968), (240, 88095), (252, 83900), (280, 75510), (300, 70476), (315, 67120), (336, 62925), (350, 60408), (360, 58730), (400, 52857), (420, 50340), (450, 46984), (504, 41950), (525, 40272), (560, 37755), (600, 35238), (630, 33560), (700, 30204), (720, 29365), (839, 25200), (840, 25170), (900, 23492), (1008, 20975), (1050, 20136), (1200, 17619), (1260, 16780), (1400, 15102), (1575, 13424), (1678, 12600), (1680, 12585), (1800, 11746), (2100, 10068), (2517, 8400), (2520, 8390), (2800, 7551), (3150, 6712), (3356, 6300), (3600, 5873), (4195, 5040), (4200, 5034)]