81908400

素因数分解:

$2^4\times 3^1\times 5^2\times 7^3\times {\mathrm{199}}^1$

素因数の和:241

約数の個数: 240

約数和(自身を含む): 307520000

約数和(自身を除く): 225611600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 25, 28, 30, 35, 40, 42, 48, 49, 50, 56, 60, 70, 75, 80, 84, 98, 100, 105, 112, 120, 140, 147, 150, 168, 175, 196, 199, 200, 210, 240, 245, 280, 294, 300, 336, 343, 350, 392, 398, 400, 420, 490, 525, 560, 588, 597, 600, 686, 700, 735, 784, 796, 840, 980, 995, 1029, 1050, 1176, 1194, 1200, 1225, 1372, 1393, 1400, 1470, 1592, 1680, 1715, 1960, 1990, 2058, 2100, 2352, 2388, 2450, 2744, 2786, 2800, 2940, 2985, 3184, 3430, 3675, 3920, 3980, 4116, 4179, 4200, 4776, 4900, 4975, 5145, 5488, 5572, 5880, 5970, 6860, 6965, 7350, 7960, 8232, 8358, 8400, 8575, 9552, 9751, 9800, 9950, 10290, 11144, 11760, 11940, 13720, 13930, 14700, 14925, 15920, 16464, 16716, 17150, 19502, 19600, 19900, 20580, 20895, 22288, 23880, 25725, 27440, 27860, 29253, 29400, 29850, 33432, 34300, 34825, 39004, 39800, 41160, 41790, 47760, 48755, 51450, 55720, 58506, 58800, 59700, 66864, 68257, 68600, 69650, 78008, 79600, 82320, 83580, 97510, 102900, 104475, 111440, 117012, 119400, 136514, 137200, 139300, 146265, 156016, 167160, 195020, 204771, 205800, 208950, 234024, 238800, 243775, 273028, 278600, 292530, 334320, 341285, 390040, 409542, 411600, 417900, 468048, 487550, 546056, 557200, 585060, 682570, 731325, 780080, 819084, 835800, 975100, 1023855, 1092112, 1170120, 1365140, 1462650, 1638168, 1671600, 1706425, 1950200, 2047710, 2340240, 2730280, 2925300, 3276336, 3412850, 3900400, 4095420, 5119275, 5460560, 5850600, 6825700, 8190840, 10238550, 11701200, 13651400, 16381680, 20477100, 27302800, 40954200, 81908400]

約数ペア:

[(1, 81908400), (2, 40954200), (3, 27302800), (4, 20477100), (5, 16381680), (6, 13651400), (7, 11701200), (8, 10238550), (10, 8190840), (12, 6825700), (14, 5850600), (15, 5460560), (16, 5119275), (20, 4095420), (21, 3900400), (24, 3412850), (25, 3276336), (28, 2925300), (30, 2730280), (35, 2340240), (40, 2047710), (42, 1950200), (48, 1706425), (49, 1671600), (50, 1638168), (56, 1462650), (60, 1365140), (70, 1170120), (75, 1092112), (80, 1023855), (84, 975100), (98, 835800), (100, 819084), (105, 780080), (112, 731325), (120, 682570), (140, 585060), (147, 557200), (150, 546056), (168, 487550), (175, 468048), (196, 417900), (199, 411600), (200, 409542), (210, 390040), (240, 341285), (245, 334320), (280, 292530), (294, 278600), (300, 273028), (336, 243775), (343, 238800), (350, 234024), (392, 208950), (398, 205800), (400, 204771), (420, 195020), (490, 167160), (525, 156016), (560, 146265), (588, 139300), (597, 137200), (600, 136514), (686, 119400), (700, 117012), (735, 111440), (784, 104475), (796, 102900), (840, 97510), (980, 83580), (995, 82320), (1029, 79600), (1050, 78008), (1176, 69650), (1194, 68600), (1200, 68257), (1225, 66864), (1372, 59700), (1393, 58800), (1400, 58506), (1470, 55720), (1592, 51450), (1680, 48755), (1715, 47760), (1960, 41790), (1990, 41160), (2058, 39800), (2100, 39004), (2352, 34825), (2388, 34300), (2450, 33432), (2744, 29850), (2786, 29400), (2800, 29253), (2940, 27860), (2985, 27440), (3184, 25725), (3430, 23880), (3675, 22288), (3920, 20895), (3980, 20580), (4116, 19900), (4179, 19600), (4200, 19502), (4776, 17150), (4900, 16716), (4975, 16464), (5145, 15920), (5488, 14925), (5572, 14700), (5880, 13930), (5970, 13720), (6860, 11940), (6965, 11760), (7350, 11144), (7960, 10290), (8232, 9950), (8358, 9800), (8400, 9751), (8575, 9552)]