78828400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{599}}^1$

素因数の和:671

約数の個数: 120

約数和(自身を含む): 221414400

約数和(自身を除く): 142586000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 47, 50, 56, 70, 80, 94, 100, 112, 140, 175, 188, 200, 235, 280, 329, 350, 376, 400, 470, 560, 599, 658, 700, 752, 940, 1175, 1198, 1316, 1400, 1645, 1880, 2350, 2396, 2632, 2800, 2995, 3290, 3760, 4193, 4700, 4792, 5264, 5990, 6580, 8225, 8386, 9400, 9584, 11980, 13160, 14975, 16450, 16772, 18800, 20965, 23960, 26320, 28153, 29950, 32900, 33544, 41930, 47920, 56306, 59900, 65800, 67088, 83860, 104825, 112612, 119800, 131600, 140765, 167720, 197071, 209650, 225224, 239600, 281530, 335440, 394142, 419300, 450448, 563060, 703825, 788284, 838600, 985355, 1126120, 1407650, 1576568, 1677200, 1970710, 2252240, 2815300, 3153136, 3941420, 4926775, 5630600, 7882840, 9853550, 11261200, 15765680, 19707100, 39414200, 78828400]

約数ペア:

[(1, 78828400), (2, 39414200), (4, 19707100), (5, 15765680), (7, 11261200), (8, 9853550), (10, 7882840), (14, 5630600), (16, 4926775), (20, 3941420), (25, 3153136), (28, 2815300), (35, 2252240), (40, 1970710), (47, 1677200), (50, 1576568), (56, 1407650), (70, 1126120), (80, 985355), (94, 838600), (100, 788284), (112, 703825), (140, 563060), (175, 450448), (188, 419300), (200, 394142), (235, 335440), (280, 281530), (329, 239600), (350, 225224), (376, 209650), (400, 197071), (470, 167720), (560, 140765), (599, 131600), (658, 119800), (700, 112612), (752, 104825), (940, 83860), (1175, 67088), (1198, 65800), (1316, 59900), (1400, 56306), (1645, 47920), (1880, 41930), (2350, 33544), (2396, 32900), (2632, 29950), (2800, 28153), (2995, 26320), (3290, 23960), (3760, 20965), (4193, 18800), (4700, 16772), (4792, 16450), (5264, 14975), (5990, 13160), (6580, 11980), (8225, 9584), (8386, 9400)]