20656800

素因数分解:

$2^5\times 3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{151}}^1$

素因数の和:196

約数の個数: 216

約数和(自身を含む): 77182560

約数和(自身を除く): 56525760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 25, 30, 32, 36, 38, 40, 45, 48, 50, 57, 60, 72, 75, 76, 80, 90, 95, 96, 100, 114, 120, 144, 150, 151, 152, 160, 171, 180, 190, 200, 225, 228, 240, 285, 288, 300, 302, 304, 342, 360, 380, 400, 450, 453, 456, 475, 480, 570, 600, 604, 608, 684, 720, 755, 760, 800, 855, 900, 906, 912, 950, 1140, 1200, 1208, 1359, 1368, 1425, 1440, 1510, 1520, 1710, 1800, 1812, 1824, 1900, 2265, 2280, 2400, 2416, 2718, 2736, 2850, 2869, 3020, 3040, 3420, 3600, 3624, 3775, 3800, 4275, 4530, 4560, 4832, 5436, 5472, 5700, 5738, 6040, 6795, 6840, 7200, 7248, 7550, 7600, 8550, 8607, 9060, 9120, 10872, 11325, 11400, 11476, 12080, 13590, 13680, 14345, 14496, 15100, 15200, 17100, 17214, 18120, 21744, 22650, 22800, 22952, 24160, 25821, 27180, 27360, 28690, 30200, 33975, 34200, 34428, 36240, 43035, 43488, 45300, 45600, 45904, 51642, 54360, 57380, 60400, 67950, 68400, 68856, 71725, 72480, 86070, 90600, 91808, 103284, 108720, 114760, 120800, 129105, 135900, 136800, 137712, 143450, 172140, 181200, 206568, 215175, 217440, 229520, 258210, 271800, 275424, 286900, 344280, 362400, 413136, 430350, 459040, 516420, 543600, 573800, 645525, 688560, 826272, 860700, 1032840, 1087200, 1147600, 1291050, 1377120, 1721400, 2065680, 2295200, 2582100, 3442800, 4131360, 5164200, 6885600, 10328400, 20656800]

約数ペア:

[(1, 20656800), (2, 10328400), (3, 6885600), (4, 5164200), (5, 4131360), (6, 3442800), (8, 2582100), (9, 2295200), (10, 2065680), (12, 1721400), (15, 1377120), (16, 1291050), (18, 1147600), (19, 1087200), (20, 1032840), (24, 860700), (25, 826272), (30, 688560), (32, 645525), (36, 573800), (38, 543600), (40, 516420), (45, 459040), (48, 430350), (50, 413136), (57, 362400), (60, 344280), (72, 286900), (75, 275424), (76, 271800), (80, 258210), (90, 229520), (95, 217440), (96, 215175), (100, 206568), (114, 181200), (120, 172140), (144, 143450), (150, 137712), (151, 136800), (152, 135900), (160, 129105), (171, 120800), (180, 114760), (190, 108720), (200, 103284), (225, 91808), (228, 90600), (240, 86070), (285, 72480), (288, 71725), (300, 68856), (302, 68400), (304, 67950), (342, 60400), (360, 57380), (380, 54360), (400, 51642), (450, 45904), (453, 45600), (456, 45300), (475, 43488), (480, 43035), (570, 36240), (600, 34428), (604, 34200), (608, 33975), (684, 30200), (720, 28690), (755, 27360), (760, 27180), (800, 25821), (855, 24160), (900, 22952), (906, 22800), (912, 22650), (950, 21744), (1140, 18120), (1200, 17214), (1208, 17100), (1359, 15200), (1368, 15100), (1425, 14496), (1440, 14345), (1510, 13680), (1520, 13590), (1710, 12080), (1800, 11476), (1812, 11400), (1824, 11325), (1900, 10872), (2265, 9120), (2280, 9060), (2400, 8607), (2416, 8550), (2718, 7600), (2736, 7550), (2850, 7248), (2869, 7200), (3020, 6840), (3040, 6795), (3420, 6040), (3600, 5738), (3624, 5700), (3775, 5472), (3800, 5436), (4275, 4832), (4530, 4560)]